Every game has one decision that everything else orbits. Ours: the battlefield is generated from your real space. Not themed after it, not vaguely inspired by it — your room’s actual shape becomes the map’s actual shape. This diary is about why we keep paying what that decision costs.
The easy version we didn’t build
A conventional mobile RTS ships with designed maps. Designed maps are good — balanced, art-directed, predictable to optimize. An AR mode that projects a fixed map onto your table gets you the augmented-reality screenshot with none of the hard problems.
We tried versions of this. They demo beautifully, and they have a hollowness that’s hard to articulate until you feel it: the room is a table for the game, instead of being the game. Nothing about your space matters. You could be anywhere, so being somewhere means nothing.
What the real thing requires
Committing to real rooms means committing to problems designed maps never have:
Rooms are inconvenient. They’re L-shaped, cluttered, and different sizes every time. The world generation has to produce a fair, playable strategy map inside an arbitrary polygon — terrain, resources, and space for two empires to matter — no matter what shape your furniture carved out.
Scale is a design decision, not a constant. A battlefield in a small room and one in a large hall can’t use one fixed scale, or one of them is wrong. Battlefield sizing became its own system: your chosen setup fits your actual space, with pacing — how long armies take to cross the world — as the thing we protect.
The real world doesn’t hold still. Lighting changes, phones move fast, tracking wobbles. A strategy game needs its world anchored — your castle can’t drift into the sofa. An enormous share of our AR engineering goes into boundary quality, stable anchoring, and recovering gracefully when the camera loses its grip. Unglamorous, endless, and the whole experience rests on it.
Why it’s worth it
Because when it works, something happens that designed maps can’t reproduce: the space becomes yours to command.
Your room’s geography creates strategy that no other player has. The chokepoint by the couch is your chokepoint. You learn your home map the way you know the room itself — and in immersive view, you walk among your own walls and watch a knight hold the line where your bookshelf is.
There’s also a quieter effect we didn’t fully predict: attachment. An empire built on your own floor feels located in a way a server-side map never does. Players defend it differently. Losing it stings differently.
The honest tradeoffs
The scanning flow will always ask a little more of you than “tap play” — we work constantly to shrink that cost (and the instant battlefield option exists for exactly the moments it isn’t worth paying). Tracking will never be perfect in a dark room. Some spaces are genuinely awkward, and our job is making awkward spaces produce interesting maps rather than broken ones.
We think about these costs the way you learn to think about the game itself: every strength is paid for somewhere. This is the game we wanted to exist — one where the answer to “where are you playing?” is the whole point.
— Battle Room Empire Team