No. Anonymous play works fully — your score, streak, and stats are stored on your browser. Sign up only if you want them to follow you across devices and your name to appear on the global leaderboard.
Yes. The server runs one round at a time and broadcasts it to every connected browser. A round that starts at 14:23:00 UTC ends at 14:23:20 UTC for everyone — there are no per‑user instances.
By design — otherwise the optimal strategy would be to sit out every hard question and keep a fake streak alive forever. Skipping costs 0 points but ends the streak.
Featherweight (+1, ~29%), Beginner (+2, ~29%), Medium (+3, ~21%), Advanced (+4, ~14%), Brainmelter (+5, ~7%). Easier rungs come up much more often. The split is 4·4·3·2·1 from easiest to hardest.
Yes — until the timer hits zero. Tap a different option and the new pick replaces the old one.
The game keeps going. If your tab loses focus for long enough the socket may temporarily disconnect; witladder reconnects automatically as soon as the tab is foregrounded.
No. Signing in attaches your existing anonymous browser identity to your account, so your score and streak carry over rather than resetting.
The full guide is on the About page, and there's an in‑app "How it works" tab once you're playing.