Indie Game Development: Validate Gameplay First, Build Systems Later (MVP Practical Guide)

Introduction

A developer spent 7 years.

37,000 hand-drawn assets, over 500 original music tracks, every frame meticulously crafted. He launched on Steam with full confidence, and the result? Almost no one bought it.

You might think this is too extreme. But similar stories play out every day—just less dramatically. I’ve seen too many indie developers spend six months or even a year building entire systems: multiple game modes, weapon customization, advanced AI, destructible environments… only to discover a problem when they finally want to test the core gameplay.

It’s not fun.

Let’s be honest: building systems is essentially avoiding the real decision—what makes your game fun? Why should players want to replay it? If the simplest version isn’t engaging, adding more features won’t save it.

This article is about helping you avoid this trap. I’ll first clarify what MVP actually means (many misunderstand it), then discuss why indie developers keep falling into it, and finally provide a validation path from a small game perspective—not preaching, but lessons learned from my own mistakes and from other developers.

Ready?

Chapter 1: What is a Game MVP? Clarify the Concept Before Strategy

Honestly, when I first heard the term MVP, I thought it meant “make a demo for investors.”

It’s different.

A Prototype is for validating technical feasibility. For example, if you want to know “can touch controls achieve precise aiming,” make a prototype to test it—ugly graphics are fine, you don’t even need a complete game loop.

A Demo is for showing others—investors, publishers, convention audiences. It needs some visual polish but doesn’t have to be playable—more like a carefully edited “trailer.”

An MVP (Minimum Viable Product) is the minimal playable version. Players can play from start to finish, experience the core fun, but everything else that can be cut is cut.

The trouble with game MVPs is: fun isn’t something you can minimize like “user login functionality.” You cut level design, cut art, cut story… and you might cut away the fun itself.

A game developer named Wayline called MVP a “kiss of death.” The reasoning is simple: games need soul—atmosphere, narrative, emotional investment—things that can’t be “minimized.” If you only keep the core mechanics, players might not feel the game’s charm at all.

I don’t entirely agree, but I understand his point.

Large games indeed don’t suit MVP thinking. Can you imagine a Zelda MVP? Just running and attacking, no exploration, no puzzles, no world atmosphere—that wouldn’t be Zelda at all.

But small games are different. A small game’s core is often “an interesting mechanic.” Flappy Bird only has three actions: “tap-fly-crash,” but it was fun from day one. It doesn’t need extra systems to “enhance” the fun—the fun comes from the core mechanic itself.

So my conclusion: small games can have MVPs, but only if the core mechanic itself has replayability. If your core loop isn’t engaging in its simplest form, building systems won’t save you.

Chapter 2: Why Do Indie Developers Keep Falling into the “Building Systems” Trap?

I fell into this trap myself.

When I started making games, my mind was full of “what kind of game to make”—multiplayer shooting, multiple game modes, weapon customization systems, destructible environments, advanced AI… sounds cool, right?

Looking back, these systems had nothing to do with core gameplay. I just wanted to make a simple shooting experience, but for some reason, I felt “adding these would make the game more complete.”

Later I realized this is called Feature Creep.

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You start wanting to make something small, but every new feature seems “interesting too,” and eventually the project scope balloons beyond what you can handle. Indie development time is already limited, and six months pass without ever validating core gameplay—instead you’re burdened with half-finished features.

There’s another trap called Premature Optimization.

Before confirming whether the core gameplay is fun, you start optimizing performance, polishing art, designing UI. This feels reasonable—“make the experience good first, then test”—but it’s completely backwards. If the core gameplay isn’t engaging, all your optimization is wasted. Players won’t play a boring game just because the UI is pretty.

The last one: Perfectionism.

Always thinking “I’ll let others test when I’m ready.” The result? Never ready. Every time you fix one problem, you find another, and time just slips away. Honestly, this psychology is very familiar to me—it’s actually fear of facing the fact that “it might not be fun.”

A developer shared his experience on Medium. He wanted to make an Albion-like sandbox game, and his initial planning was stuffed with system designs: trading, crafting, guilds, territory… Two years into development, looking back he realized: the core loop of “collect resources-craft equipment-battle/trade” had never been validated. He spent huge amounts of time on “how to implement these systems” instead of “whether players would like this loop.”

There’s an even more extreme case—the 7-year developer I mentioned at the start. 37,000 hand-drawn assets, 500+ music tracks, technically pushed to the limit. But where was the problem? He never validated in the early stages “whether this game type has a market now.” If he had put out a playable version to test earlier, he might have discovered—the target audience is small, or this genre is outdated.

What’s the essence of building systems? I think it’s avoiding real decisions.

You dare not ask yourself “what makes this game fun,” so you use “I need to complete the systems” to delay that question. But the question doesn’t disappear. It will only give you a harsher answer halfway through the project, when time is gone and confidence is lost.

Chapter 3: The 4-Step MVP Validation Path for Small Games

Alright, enough negative examples. Now I’ll give you a directly executable process.

This isn’t textbook methodology, but things I learned from other developers and practiced myself—suitable for small games, suitable for indie developers, suitable for the reality of limited time.

Step 1: Identify the Core Loop

Ask yourself one question: What are players repeating every minute in my game?

The answer to this question is your core loop.

For example, if you want to make an Albion-like sandbox game, the core loop might be: collect resources → craft equipment → battle/trade → use battle proceeds to get more resources.

These four actions, players will loop through again and again. If your game is fun, players will be willing to repeat this loop dozens or even hundreds of times.

This loop has a characteristic: it must be self-enclosed. When the loop ends, it must return to the starting point, giving players motivation to continue the next round. If the loop chain breaks—for example, no clear use for collected resources—players will leave.

After identifying the core loop, write it down in one sentence. This sounds simple, but many developers find on their first try: they actually can’t articulate “what players are looping through.” If you can’t articulate it, the core gameplay hasn’t taken shape yet.

Step 2: Build a Minimal Prototype

Now that the core loop is clear, the next step is to make it playable.

Key word: Cut 90%.

A developer shared his 3-week timeline, which I think is very practical:

Week one: Character controller + test map + attack dummies. No enemies, no feedback, just make the character move.

Week two: 2-3 weapons + item pickup + health system. Now players can “battle,” even if opponents are just standing dummies.

Week three: Resource nodes + simple crafting system + AI enemies. The core loop is finally complete: collect → craft → battle.

Three weeks. That’s a reasonable time for an MVP. If you say “I need three months to make something playable,” you’re probably building systems, not doing MVP.

A principle when building the prototype: use the simplest solution available. Don’t think “it needs to scale later so design the architecture now”—that’s system-building thinking. First make the core loop run, even with the ugliest placeholder art and crudest UI.

Step 3: Real Player Validation

This is the step many developers skip most easily.

They’ll find friends to test, friends will say “pretty good,” “quite interesting.” Then the developer confidently continues development…

Don’t do this.

Friends won’t tell you the truth. They don’t want to disappoint you, or they’re already familiar with your development process and know what feedback you want.

Find strangers to test.

Go to game forums, Reddit, local game conventions. Give them the prototype, don’t explain too much, just see if they can figure out the gameplay themselves.

You need to watch three metrics:

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1. Comprehension: Can players figure out “what this game is about” within 30 seconds? If you need to explain, the interaction design has issues.
2. Engagement: Are players willing to play more than 5 minutes? If they put it down quickly, the core loop might not be engaging.
3. Willingness to share: Do players show signs of “wanting to play again” or “wanting to tell others”? This is the most authentic validation signal.

A developer shared his prototype testing method: he let players freely play for 10 minutes, recorded the whole process, then watched where players got stuck, where they showed confusion or frustration. These details are more authentic than any verbal feedback.

Step 4: Decision Point

After testing, you have three choices: continue, adjust, or abandon.

This sounds harsh, but it’s necessary.

Continue: Players understand the gameplay, want to replay, show willingness to share. This means the core loop has potential, you can start building systems—but only systems that enhance the core loop.

Adjust: Players can understand the gameplay, but don’t want to replay, or give feedback that certain parts are boring. At this point don’t rush to build systems. Go back and modify the core loop—maybe adjust feedback rhythm, maybe simplify a certain part, maybe strengthen another part.

Abandon: Players don’t understand the gameplay at all, or lose interest after a few minutes. This is hard to accept, but sometimes the wisest choice is to admit “this core mechanic might not be suitable for a game.” You can preserve certain elements of this idea and try a new direction.

Abandoning isn’t failure. It’s a way to save time. Rather than spending a year on an unengaging core mechanic, it’s better to admit it early and try the next idea.

A developer shared on Zhihu: he made three MVPs, abandoned the first two, and found direction with the third. Sounds like wasted time? Actually no. The first MVP took 2 weeks, the second took 3 weeks, the third took 4 weeks—total 9 weeks. If he had directly built out the first idea completely, he might have spent 6 months before discovering “it’s not fun.”

9 weeks vs 6 months. That’s the value of MVP.

Chapter 4: From MVP to Full Game: The Right Time to Build Systems

Validation succeeded. The core loop is confirmed fun, players want to replay.

At this point, it’s the right time to build systems.

But not just any systems. The purpose of building systems should be to make the core loop more fun, more lasting, more deep—not to distract players.

Three Priorities for Building Systems

First Priority: Enhance Core Loop

What can make the core loop more interesting? Maybe richer feedback—particle effects when hitting enemies, sound effects on kills, achievement animations when completing a loop. These things sound like “details,” but they directly affect how players feel about the core loop.

Why was Flappy Bird successful? Its mechanic is “tap-fly-crash,” extremely simple. But its feedback design is strong: every crash has clear visual and audio, score increments give players immediate achievement, and the “Play Again” button position at game over is just right—making players instinctively want one more try.

It didn’t build systems. It just pushed feedback for the core mechanic to the limit.

Second Priority: Provide Long-Term Goals

The core loop itself might only support players for tens of minutes. To keep players engaged for months, you need long-term goals: unlocked content, challenge difficulty, leaderboards, achievement systems.

But note, these systems should be extensions of the core loop, not replacements. The leaderboard’s purpose is to make players willing to repeat the core loop to improve ranking, not to make players “play the leaderboard for the leaderboard’s sake.”

A counter-example: “Keylocker.” This is a music rhythm RPG with complex systems: combat, rhythm, story, side quests, character development… but player feedback was: these systems compete for attention, making the “rhythm game” core ambiguous. Players don’t know whether they’re playing a rhythm game or an RPG, and both experiences end up insufficient.

Third Priority: Reduce Repetition Fatigue

The core loop gets boring after many repetitions. At this point you can add variation elements: different enemy types, different environmental scenes, different difficulty curves.

The goal of this content isn’t to “expand game scale,” but to keep the core loop fresh during repetition. If the elements you add make the core loop more complex and sluggish—you’re doing it wrong.

A Judgment Standard

Every time you want to add a new system, ask yourself: Will this system make the core loop more interesting or more dispersed?

If the answer is “dispersed”—players might spend a lot of time on this system, not the core loop—then this system might not be what you should add at this stage.

Simply put: the time to build systems is “after core loop is validated,” the principle of building systems is “enhance, not disperse.”

Chapter 5: Tools and Platform Recommendations for Small Game MVPs

If you’re an indie developer with limited time and possibly incomplete tech stack, choosing the right tools can accelerate MVP building.

No-Code/Low-Code Tools

I’m not saying you should use these tools to build complete games. But for MVPs, they can help you quickly validate ideas—even if you eventually switch to Unity or Godot, validating the core loop first is worthwhile.

Construct 3: Suitable for 2D games, drag-and-drop editing, event-driven logic. Pros are quick to learn, cons are limited flexibility. Good for validating feasibility of simple mechanics.

GDevelop: Open source and free, also event-driven. A bit rougher than Construct, but if you’re budget-constrained, this is a good starting point.

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Buildbox: More “template-oriented,” suitable for specific game types (like pinball, parkour). If you want to make these types, it can help you quickly produce prototypes.

These tools share a characteristic: no coding required. For the “I want to quickly validate this idea” need, they’re more efficient than traditional engines. But if you want to build more complex systems, you’ll eventually need to switch to Unity, Godot, or Cocos Creator.

Small Game Platform Characteristics

If your target is WeChat mini-games or Douyin mini-games, there are several validation conveniences:

Sharing mechanism: WeChat mini-games naturally have a “share to friends” function. You can use this function to test players’ willingness to share. If players are willing to share your MVP with friends, the core loop has appeal.

Instant play: No installation, no download. This means player testing threshold is very low—you just need to send the link to strangers, and they can play immediately. This is much more convenient than “please download my APK and install.”

Social spread: Douyin mini-games’ spread path relies more on content (videos, short videos). If your game has “showable moments”—like a brilliant move or a funny failure—players might spontaneously film and share. This is another form of validation.

But also note platform limitations: WeChat mini-games have package size limits (4MB), Douyin mini-games have review processes. These limitations will affect your MVP design—you might need more streamlined art, fewer audio resources.

Cocos Creator MVP Development Efficiency

If you’ve already chosen Cocos Creator (other articles in this series should have detailed introductions), there are several efficiency tips when doing MVPs:

Component-based development: Cocos’s component system is great for MVPs. You can quickly build a “character controller” component, then test it separately. After validation, add the next component—stacking gradually, not building complete systems all at once.

Prefab reuse: Make core elements into prefabs (like enemies, items, UI buttons). This way during testing you can quickly adjust quantity, position, parameters, without recreating each time.

Scene separation: Don’t put all content in one scene. Each part of the core loop can be tested in separate scenes—“battle scene,” “resource collection scene,” “crafting interface scene.” Merge after validation.

If you’re familiar with Cocos Creator’s development approach, MVP building time might be even shorter than using no-code tools—provided you’ve already mastered component and prefab usage.

Conclusion

After all this, here are three things you can do immediately:

First, write down your core loop.

Describe in one sentence: what actions are players repeating every minute in your game? If you can’t articulate it clearly, the core gameplay hasn’t taken shape yet. Don’t rush to start coding.

Second, list the 90% you can cut.

List all the “features to implement” in your mind, then ask: does this feature directly serve the core loop? If not, it should be cut now. Consider adding it back only after the core loop is successfully validated.

Third, find 3 strangers to validate your prototype.

Not friends, not colleagues. Go to forums, conventions, anywhere you can find stranger players. Let them play your MVP, don’t explain too much, observe their reactions. If they put it down within 5 minutes, or completely don’t understand the gameplay, go back and change the core loop—not build systems.

A developer said something I think is very accurate:

“If the core gameplay isn’t fun in its simplest form, adding more features won’t fix it.” — shno.co

This quote is worth reading repeatedly. It doesn’t reject system design, but reminds you: systems are icing on the cake, not the cake itself.

The core advantage of small game development is “low time cost.” With MVP thinking, you can validate an idea in weeks. If it’s not fun, try another idea. If it’s fun, that’s when it’s the right time to build systems.

Don’t let “building systems” become an excuse to avoid decisions. Validate early, know the answer early—whether continuing or abandoning, both are better than consuming six months in uncertainty.