Structuring Key Design Elements

While a business plan isn't some magical tool for turning game ideas into game concepts, it is an important aid for assessing the requirements of your game idea. This article discusses the relationship between game design and your studio's business processes, and shows how to implement use-case diagrams.

All games start as an idea, something like "Wouldn't it be cool to be a space marine and blow up zombies on Phobos" or "Wouldn't it be cool to be a pilot in a starfighter involved in an epic struggle to overcome the oppression of a star empire gone bad" or "Wouldn't it be cool to drive modified street cars on Tokyo streets at night." These idea sparks are often the source of long conversations between developers late into the night at the studio. Another potential starting point for a game is a licensed property; i.e., "make a RPG/RTS/action game using XXX license." (Fans may want to play that license specifically. Major licenses include Star Trek, Star Wars, D&D, WWE, Lord of the Rings, and Harry Potter.)

This article discusses how to turn the structure that your business context and your game ideas provide into a game concept worthy of fleshing out into a game design document.

Business Context Shapes Design, Or Does Design Shape The Business Context?

First of all, I am not asserting that having your business context in hand will act as a magical tool that will turn any game idea into a well-thought-out game concept. It is only an important aid to assess the requirements that your game idea is implying. Some game ideas (such as the faithful recreation of Middle Earth where the whole world is modeled with strong AI, 3D graphics capable of great indoor and terrain rendering, where an unlimited number of players can join in together on both sides of epic conflict between good and evil) cannot be reconciled with the business parameters of two artists and a programmer looking to break into the industry, who have six months of living expenses available to them on their collective credit cards. That Middle Earth concept is an example of a game that will dictate the business parameters. If we take the business parameters of two artists and a programmer, they might want to recreate an arcade classic on the Nintendo Game Boy Color or Advance, use it to secure their first deal, and then move on to more ambitious projects.

Where the key design elements lie in the project's lifetime.

(Click image to enlarge.)

For many game projects there is a middle ground where the business parameters and the game idea go back and forth and refine each other. Perhaps the developer pitches a massively multiplayer game to a publisher who is wary of the costs and risks behind massively multiplayer. From these talks it is quite possible the developer will end up creating a game that exploits a license the publisher has rights to and features a much more modest multiplayer feature set. This is not an acceptance of a mediocre plan; rather it is a mature development of the idea into a viable concept. A viable concept is a game that people with capital believe will be seen through to completion, with a high probability of favorable reception in the market to overcome the inherit risk in game making.

Reconcile the Business Context and Game Idea Early

This process of refining the game idea and business context is the earliest stage of a game project. All projects reconcile their business contexts and the game idea at some point. Tragically, for too many projects this reconciliation only occurs after the project manifests itself by underperforming, usually by missing milestone dates. Some projects have a painful reassessment where senior management allocates more funds and grins and bears it. For other projects, senior management interprets this late reconciliation as an unpleasant surprise presented by an immature development team and consequently cancels the project.

Allocating more funds and time to a project is a common occurrence, and because it is commonplace, too many developers think it does no harm to themselves and no significant harm to the publisher. That is fallacy; when a publisher is forced to spend additional dollars and push back the release of the title, there are many negative impacts.

First of all, the publisher must extend additional money to the developer. This is an obvious point, but it means that these funds are unavailable towards the development of another title with another developer or (worse for this title) funds may be drawn from the marketing budget to pay for this overage.

The second impact is that the publisher has to delay when they will be able to start recouping their investment and see a profit that they can put to work in future games.

The third problem is that the marketing effort is deflated as the awareness for the game is now ill-timed, and it will be difficult for the game cover that marketing was able to secure for your game last quarter to have real value 18 months later. Right or wrong, the developer is the vendor and the publisher is the customer, and the adage that the customer is always right holds firm in this case, with the developer being tarnished by the reputation of poor estimating capability.

Another reason to avoid going back for extra money and time from your publisher is that the business deal will never improve. A loss of royalty points is common; sometimes you will see a shifting of intellectual property rights. In the extreme sometimes the developer agrees to an assignment of equity in the project to the publisher. In the case of shifting equity to the publisher, the developer is strongly advised to get full value for that equity; no matter how small an equity stake the publisher takes, it will make all other publishers avoid doing business with the compromised developer for fear of a conflict of interest and confidentiality concerns.

The developer is also losing time by going over his time budget, and spending more time on a project with the business deal worsening is not a good goal.

The final reason to avoid a late reconciliation of the business context and game idea is to prevent team members from becoming disillusioned and moving on to another company.

At Taldren we have released Starfleet Command, Starfleet Command: Gold, Starfleet Command: Neutral Zone, Starfleet Command 2: Empires at War, and Starfleet Command: Orion Pirates in less than two years. At the same time we gathered more fans and have always produced a profit for our publisher. Many of our employees are loyal to Taldren because of the steady pace of release; they know their work will be released and not wasted.

The Effects of a Slipped Game

1. Less working capital for the publisher.
2. The total advance is tied up longer than expected.
3. Marketing dollars are often wasted as the hype bugle is blown too soon.
4. The developer's reputation almost always suffers.
5. The business deal never improves for the developer.
6. The developer loses the opportunity to work on other titles.
7. Team members are in danger of becoming disillusioned, and the team may suffer uncomfortable turnover.

Ion Storm has to be the most infamous example of the consequences for late reconciliation of the business context and the game idea. Ion Storm was founded around John Romero, who is credited with the design of Doom-perhaps the greatest PC game ever. The UK-based Eidos was flush with cash, and John Romero left id just as Quake was entering its final stages towards release. Eidos needed to put the surplus capital from the Tomb Raider series to work, as all businesses must do. Tomb Raider was so successful that Eidos needed to get into a number of games, but established top developers were already booked, so Eidos would need to go with a less established development house. The idea of taking advantage of the designer behind Doom and creating a new development house is not a bad idea; in fact it is a good idea. Experience, a built-in fan base, and a great story for the media would create an environment that would be conducive to game development, one would think.

Ion Storm was founded with the vision statement that design is king. Even this is not a bad idea; treated properly this would mean that Ion Storm would capitalize on its core strength -- game design embodied by John Romero -- and take advantage of existing game engines. Looking at how Ion Storm interpreted their vision statement would reveal where Eidos made their mistake. Ion Storm used the vision statement, design is king, to treat game development as a pure art form and lost respect for a strong development process. Ion Storm's marquee project Daikatana suffered all of the ills described above. Whole engine retooling caused massive delays and required Eidos to double the already overgenerous advance of $13 million to $26 million to keep Ion Storm's three projects rolling.

Daikatana did not just lose face in the game press, it became the material for much derision, and even the local Texas newspapers saw the poor management at Ion Storm as a good story for a series of columns. Ion Storm not only suffered crippling turnover, but some employees helped feed the negative press storm by leaking to the press ugly internal email. John Romero was forced to hand over the company to Eidos, and their games shipped to little success. Ion Storm's Dallas office has been closed by Eidos to what amounts to a large write-off of Lara Croft earnings and a reputation for Eidos to overcome. In fact the quieter Ion Storm Austin studio run by Warren Spector, which shipped the critically acclaimed Deus Ex, is now looking for a shiny new name to operate under to distance that studio from the ill-fated Dallas studio.

The sad thing is that John Romero really can design games; just play Doom any day and you will see how amazing a game it was and still is. And Eidos turned on the cash to set up the game for greatness. It is just heartbreaking, really, to think about the potential of Ion Storm and to see it fall for lack of rigorous development methods.

What can be worse than either pumping more money into a late project or canceling a project? Shipping it. It should never be done, but almost every large publisher has shipped a game well before it was finished. I don't mean just with bugs; I mean before critical parts of the game were complete.

Descent to Undermountain from Interplay is a classic example of a game that was shipped too early. The idea behind Descent to Undermountain was to take advantage of two key assets of Interplay: the Advanced Dungeons and Dragons license and the mega-hit Descent. Management at Interplay decided it would be a snap to plop down some fantasy environments, characters, and monsters to bash. Management decided the Descent game engine would be ready for immediate development into another title. Most publishers do not have a strong technical director available for code review. Yet at the same time many publishers also negotiate the terms of the publishing deals to either own the software engine behind the game or have a license to the software engine. Descent to Undermountain was a case where the revenue opportunity was so large as to prevent an objective review of what it would take to get the game done. The original business parameters for this title called for a budget of only six months of four developers' time. No established development house was chosen to do the job; rather an ambitious independent contractor programmer stepped up, and various artists at Interplay contributed to the project. No project manager was allocated. Let me share with you what Gamespot thought of the results of this game after it slipped to three years and six times the original budget:

From Gamespot review of Descent to Undermountain:

But somewhere along the line something went horribly wrong, and now gamers are asking themselves two questions. The first arose merely out of befuddlement: How could the company that produced Fallout also be responsible for one of the lousiest games to come down the pike in quite a while? The second, though, addresses a much more serious issue: Why did Interplay ship the thing when it wasn't even close to being the sort of cutting-edge product the hype machine had led us to believe it would be? …There's probably no way to learn the answer to the first question, but-thanks to some very frank members of the Descent to Undermountain team-the answer to the second is now common knowledge. The game went out when it was scheduled to go out (in time for a Christmas release) even though it wasn't ready. That's not just me speculating; that's precisely what a member of the DTU team stated in a recent post on Usenet.

When a project is three years in the making and six times the original budget, there is tremendous pressure to just ship the game. At the time, Interplay was receiving a huge amount of attention for Descent to Undermountain; everyone wanted a truly 3D dungeon romp. (Dungeon Siege, the first really 3D dungeon romping game, and BioWare's Neverwinter Nights, which is a more detailed 3D implementation of D&D, weren't released until 2002.) Interplay thought at the time that with all the hype, maybe, just maybe, the early sales in the first few weeks would be large enough to recoup a significant portion of the costs. It was also Christmas time when 40 percent or more of our sales as an industry happen. Interplay had three choices:

1. Ship it now.
2. Cancel the project altogether. (Remember lost money really is lost, and it is best not to chase it.)
3. Find a real AAA development house and start over with a new large budget and two years more of development time. (Really the same thing as canceling the project.)

Unfortunately for Interplay at the time, canceling the project or starting over with a new developer appeared to be more expensive than shipping the title. Let us see what Gamespot thought of this decision to ship the game:

From Gamespot review of Descent to Undermountain:

The lesson to be learned should be obvious: If you're gonna ride the hype machine, you'd better deliver the goods. Sadly, DTU doesn't even come close-and the worst part is that sometime over the next year or so we'll probably see this same story played out all over again.

So what have we learned today? That pushing a product out the door before it's ready makes loyal customers angry; that game developers should keep at least one eye on what's going on in terms of technology when working on a new game; and that if you buy Descent to Undermountain after reading this, you get what you deserve.

Descent to Undermountain shipped in a condition that was far below the industry standards of the time, Diablo and Quake II. The hype behind this game also crushed it. It is just possible that if Interplay had developed this title quietly, hard-core fans of AD&D and/or Descent might have bought 20,000 copies and been patient for a patch or two. I am not saying this is a great idea, but it is better than a hype storm. This is a poor way of doing business; the game industry shows time and time again that the mega-hits are just games that offer straightforward gameplay with strong production values. Wacky or niche games or poor craftsmanship are not rewarded. Just make a few quality titles and you will spend a lot less money in development, and your individual titles will have more capital to work with.

Descent to Undermountain was a perfect case where the game idea and the business parameters were in conflict. If Interplay wanted a title in six months and had only a modest budget to accomplish it with, then Interplay should have commissioned the developers of Descent, Parallax, to create a cool expansion pack for Descent and they should have contented themselves with the sales of an expansion pack. Perhaps it was perceived that with Descent II already in development at the time, it would have been competing for sales. The other option was for Interplay to allocate the funds they were to later plow into Stonekeep II and hire a top developer to create a 3D dungeon romp of quality. Stonekeep II would later go into production for five years and then be cancelled. You must create a game that is compatible with your business context or fail.

Methods and the Unified Development Process

Microsoft, the most successful software development organization on the planet, sells a lot of games. Microsoft is perhaps best known for its Flight Simulator franchise, but MS now owns Ensemble (Age of Empires franchise), Bungie (Halo and Myth, formerly the premier Macintosh development house), FASA Interactive, and Digital Anvil (the former Chris Roberts company working on Freelancer), as well as being the publisher for a host of externally developed titles such as Dungeon Siege. Microsoft is a large organization with many layers of development procedures that other publishers do not employ. The first thing Microsoft does when evaluating a developer is to send a small team of game development leads comprised of production, design, programming, and art to evaluate the strength of the team. A large part of this evaluation is to also evaluate the developer's methods to determine if they are compatible with Microsoft's and if these methods give Microsoft confidence that the developer has thought through their project and will deliver a great game, on budget and on time. Development methods must be good things judging by Microsoft's success.

What Is a Development Method?

meth·od noun-A means or manner of procedure, especially a regular and systematic way of accomplishing something.

We do want systematic game development; this whole book is dedicated to the presentation of various game development methods. Systematic and repeatable methods allow us to retain what worked and improve upon what did not work well. The alternative to using a method is employing ad hoc techniques over and over again and being successful only by good fortune. I rather like to make my own luck, thank you very much. The first method we need to nail down is how to reconcile your game idea and business parameters. I advocate using a comfortable subset of the Unified Software Development Process developed by the three amigos Ivar Jacobson, Grady Booch, and James Rumbaugh.

Why Use the Unified Software Development Process?

The simple reason is that the Unified Process is quickly becoming the software industry standard. The Unified Process has a long legacy dating back to at least 1967; at this time Ivar Jacobson worked for the telecom giant Ericsson. Jacobson had a radical idea for the design of the next generation telephone switching equipment at the time, a method we would now call component-based development. For this project Ericsson modeled the whole switch system and subsystems as interconnected blocks. The relationships between these blocks was then articulated and revised. The dynamic processes of the switch were identified and modeled. Every message passing back and forth from each object was included in this model. This software architecture and object message compilation was probably the best technical design document of the time. This was a radical concept because software customers at the time were not accustomed to seeing a blueprint of the software before the software engineering began. This method was not chosen on a whim; rather it met the demand that the software be robust enough for the telephone switching equipment to remain operating while receiving upgrades and patches to the software components of the switch in real-time.

I will skip the middle part of the history behind the Unified Process; the point is that 35 years ago a repeatable method of creating great software was developed, and despite this, most software organizations have weak methodology.

The Unified Modeling Language is the standardized text and visual language for the articulation of software design supporting the Unified Process. Beyond the development of Ivar Jacobson, Grady Booch, and James Rumbaugh, UML enjoyed broad support and major companies such as IBM, HP, and Microsoft joined in the development and standardization of UML.

Requirements Capture

The purpose of a software development process is to take the user's requirements and transform them into a functional software system. That transform stage is what we game developers are doing when we make games. We take the vision of the gameplay-how it should play-and turn that into a finished game.

JARGON: Requirements capture- articulating the requirements the functional software must satisfy, such as to be fun or to run at 30 frames per second.

What is the first step in the development process? Figuring out what we are supposed to do. There is a neat formalized term for this: requirements capture. Requirements capture is something you have already started. Your business constraints are some of the requirements the software must satisfy. How do we methodically discover the rest of our game's requirements? The short answer is that there is no quick, magical method to sit down and write up in a single sitting all of the requirements your game must fulfill. Wait, don't go away, I am still going to show you how to do it; it just involves several iterative steps.

Click image to enlarge.

The role of a development process.

Use Cases

First, if you have not already done this, write down your game idea on a single sheet of paper. Write two or three sentences that describe your game in the center of the piece of paper. Now in no particular order write down the major functionality of the game in an outward, radial manner from the game idea in the center. The larger, chunkier aspects of the game should be close to the center and the detailed ideas farther away. For example if you are designing a role-playing game, you have characters; write that down. Characters have stats; write that down. Characters have names; creating the characters' names is a feature. What you are doing is brainstorming the gross feature set of your game. This particular method of putting the game idea down at the center of the page is good to get you started if you have not put a lot of effort into your game design document yet. The immediate goal is to identify all of the core activities the player can perform in your game. Each of these core activities is composed of many individual actions the player performs. Each of these actions is called a use case in the Unified Modeling Language.

Click image to enlarge.

Brainstorming features

JARGON: Use case-an interaction between an actor and the software system. A fully articulated use case is composed of both text describing a sequence of actions and a graphical diagram showing the relationship of this particular use case with others in the system.

Collecting these use cases and writing them down will drive our process to identify the requirements of our software. The software requirements will then help us develop the architecture for our software. The use cases represent function, and the architecture represents form. The Unified Process is called use case driven because it is the effort to capture our use cases that drives the development. All of our future efforts in the construction of our software are to further the realization of these use cases into a functioning software system. Now, what exactly does a use case look like?

Click image to enlarge.

A simple use case diagram featuring the use of an automatic teller machine.

It turns out one of the fundamental tenants of UML is that the language shall be extensible, flexible, and ultimately serve only to aid the process of distilling and communicating the system requirements. This ATM transaction diagram uses only three UML symbols: the oval use case, the stick figure actor, and the relationship line. The stick figure is called an actor. Actors represented by a stick figure are most often users of your software, or players of your game, who are interacting with the game. It is better to use the abstract term "actor" so you will see all of the external users of your game system such as the single-player player, the multiplayer player, the system administrator, and the database server of your online component. After identifying your actors, the use cases will flow rapidly. The use cases are the unique interactions between the actors and the software system (game). The use cases are represented by a simple oval with an active verb phrase such as "withdraw cash" or "analyze ris

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