Nexus 1v1: transcript
This is Nexus, a one-lane strategy game we built for the browser: two bases, one lane, and waves that fight on their own.
You don't steer units. You choose what your buildings send, and the waves meet in the middle.
Break two guard towers and then the enemy core to win. It's about picking counters, not clicking fast.
Under the 3D view is an engine that never guesses. Here's how it works.
The simulation is pure code with no graphics inside, stepping thirty times a second from a seeded random generator.
Same seed, same match: a determinism gate compares the game state hash, run after run.
Every hit in a tick lands at once, so the order players act in can never tip a fight.
Balance is tested by the machine: eight gates, including a mirror test across sixty seeds, before a change lands.
The AI opponent is plain rules, not a language model: three levels that differ in reaction time and mistakes, from about thirteen to seventy actions a minute.
Multiplayer runs on a Cloudflare Worker with one room per match. The host is the authority, and snapshots go out three times a second.
AI helped build it too: the 3D models were generated, and the sound and narration were made with voice AI.
Nexus: one lane, no luck.