Highstack

Stack the blocks. Tap or press space to lock each one. Overhang gets sliced off, and one full miss ends the run.

Perfect locks build a multiplier, up to x8, so the score comes from precision rather than patience. The tower never ends: it speeds up as you climb and starts narrowing past row 15, so every run ends eventually. The only question is how high.

This is the free practice version. The ranked board lives at https://highstack.lol where the highest verified score holds the #1 slot for the week, with your link on it. Every ranked run there is replayed on the server from its seed and your inputs, so a score that does not reproduce does not count. One free ranked try every day, no account needed.