Every Keymap Labs game is built on the same input engine as the tools: real mouse counts, real physics, honest numbers. Play for the run, keep the reflexes.
A duel that reads your mouse back to you. One room, one opponent, one blade. Meet each attack in the line it comes from. Every guard is measured — reaction from the wind-up, how straight the flick landed, and how many degrees it travelled past the line before it turned back.
The whip game your mouse plays. Run an endless forest at dusk with a lantern and a real physics whip. Flick to crack; the crack is the only weapon. Six creatures, four biomes, a Warden every 800 m, a daily seeded run and country leaderboards.
Aim training that races the world. Eight drills, five hand-built arenas, your real game sensitivity carried over from 22 games, and a daily challenge with ghost replay and country leaderboards. Runs at your monitor refresh rate.
Lashline and AimFlow are built on the input engine that powers the Keymap Labs tests: pointer lock with raw mouse movement, physics stepped at 120 Hz, adaptive resolution that holds your monitor refresh rate and synthesised sound with nothing to download. The games are where that engine gets fun; the tools are where it gets precise.
A daily seeded run per UTC day so everyone plays the same challenge, world and country leaderboards with a display name only, a result card you can copy, and settings that stay on your device. Neither game asks for an account.
Both games read mouse counts directly, so DPI and polling rate change how they feel. The DPI analyzer shows what your mouse really delivers, the polling rate test checks the timing, and the sensitivity converter carries your in-game sensitivity into AimFlow.
I answer from this site only — the 28 browser tests, the controls library for 46 games, the sensitivity converters and the two games. I can tell you which page to open, how a tool works and what its result means.
I will not guess. If something is not on the site, I will say so.
Answers come from this site's pages.