Quick answer: Abstract input behind named actions instead of reading specific keys or buttons, so the same code handles keyboard, mouse, and any controller, and players can remap freely. Retrofitting controller support into hardcoded input is far harder than designing for it from the start.

Controller support is one of those features that's easy if you plan for it and miserable if you bolt it on at the end. The difference comes down to a single architectural decision—how you read input—that's made very early and very hard to change later.

Read actions, not buttons

The mistake that makes controller support painful is reading input directly: checking 'is the space key down' all over your code. When you later add a controller, every one of those checks has to learn about controller buttons, and remapping becomes impossible because the bindings are scattered everywhere. The right approach is an input abstraction: your game logic asks whether the 'jump' action is active, and a single input layer decides what 'jump' maps to across keyboard, mouse, and every controller. The gameplay code never knows or cares what physical button was pressed.

This abstraction unlocks everything players expect from modern input. Remappable controls become trivial because bindings live in one place. Supporting multiple controller types—each with different button layouts and conventions—becomes a matter of mapping their inputs to your named actions. Handling analog sticks, triggers, and deadzones, switching prompts based on the active device, and supporting players who fluidly move between keyboard and controller mid-session all become manageable. None of it is hard when input is abstracted from the start; all of it is a grueling retrofit when input is read directly throughout the codebase. Design the action layer first, and controller support is almost free.

Small and finished beats big and abandoned

A folder of impressive unfinished projects teaches far less than a single small finished one, because finishing is where the hardest and most valuable lessons live — the unglamorous final stretch of bug-fixing, polishing, and shipping that ambitious abandoned projects never reach. Each completed game, however modest, builds the finishing muscle and the confidence that make the next one achievable.

So resist the pull of the dream project until you've shipped a few small ones. Scope to what you can actually complete, finish it, and let the experience of shipping make your bigger ambitions realistic.

Trust behaviour over opinions

People are unreliable narrators of their own experience — they're polite, they rationalise, they suggest fixes that miss the real problem. What they do tells the truth that what they say obscures: where they hesitate, where they get stuck, what they ignore, where they quit. The most valuable feedback is usually the behaviour you observe, not the opinion you're offered.

This is why watching beats asking, and why real data about what players actually do beats any amount of speculation. When several people stumble at the same spot, that's a problem worth fixing, regardless of whether any of them mentioned it.

Why finishing beats perfecting

The hardest skill in indie development isn't any particular technique — it's finishing. Most games that never ship didn't fail on talent; they failed on scope, polished forever, or chased one more feature. The developers who build a real body of work are almost always the ones who got good at choosing something small enough to complete and then completing it.

That's worth keeping in mind here, because it's easy to let any one part of development expand to fill all your time. Decide what 'good enough to ship' looks like, protect that line, and treat the endless list of possible improvements as a backlog rather than a set of obligations.

Plan for the parts you can't see

Once a game leaves your machine, a lot of what happens to it becomes invisible by default. Players run it on hardware you don't own, hit problems you never reproduced, and most of them never tell you — they simply move on. The gap between 'it works for me' and 'it works for everyone' is where a surprising amount of churn quietly lives.

So plan to see what you otherwise couldn't. Watching real players, capturing the bugs and crashes they hit with the context to fix them, and paying attention to where they drop off all turn invisible problems into ones you can actually act on — which protects the reviews and retention everything else depends on.

Consistency beats intensity

Indie development is a long game, and it rewards steady, sustainable effort more than heroic bursts. A little progress made consistently — on the game, on the marketing, on the community — compounds in a way that last-minute sprints never do. The developers who finish and find an audience are usually the ones who kept showing up, not the ones who worked themselves into the ground for a week and then burned out.

Build a pace you can sustain, and protect it. Momentum is fragile and expensive to rebuild, so steady forward motion is worth more than any single intense push.

Let real players be the judge

It's remarkable how differently real players behave from how you imagine they will. The tutorial you think is obvious confuses them; the feature you agonised over goes unnoticed; the thing you almost cut becomes their favourite. None of that is visible from inside your own head, which is why watching real people play is the single highest-leverage thing most developers under-do.

Watch without intervening, resist the urge to explain, and pay attention to what players do as much as what they say. Their confusion and their choices are data, and acting on that data is what turns a game that works for you into one that works for everyone.

Ask for 'jump,' not for the space key. An action layer makes controllers and remapping nearly free.