One rule. Climb the haunted tower, grab the coins, dodge the zombie horde, beat your mates, take a spot on the global Top 100 and earn the right to roast everyone below you. Fall behind and you're the MÖSÖ. Simple as that.


Hit play. No download, no account, no excuses. Climb the tower, stack coins, outrun the zombies.
Not a member? You can still show a friend the game right here as a guest — no sign-in required.
Want to invite others, share the game, and chat? Join free on this site, then invite from the page after you log in.
Top your friends on the shared Top 100, then use circle chat once you're logged in as a free member.

Flies in, laughs at your jump, steals your dignity.

Calls you chicken. The audacity.

Nine lives. You've got one. Use it wisely.

Your score. More coins, higher rank, louder roasts.
…and the horde underneath. Stop climbing and they'll catch you.
Climb the tower, bag the coins, outrun the horde. Your coins are your score: the more you stack, the higher you go on the Top 100. Fall, and well… you know what you are.
No account needed. Copy your challenge and send it anywhere.
Climbers who cleared the final level. Hidden until the first crowning — then the list grows forever.
Loading GrandMasters…
The same worldwide board as Don't be MÖSÖ. Play here as a guest with no account, or join free on mosogame.com — one shared Top 100.
Loading shared global Top 100…
Play and post to the global Top 100 here with no account. If you only want to show a friend the game and you’re not a member, do that right here without signing in (guest play).
To invite others, share the game, and chat, join free on this site, then invite through the page after logging in. Arriving via a friend’s invite link? Their code is applied automatically.
Guest play stays open with no account. Inviting friends, sharing the game, and circle chat unlock after you join free and log in — then invite from the page.
Only want to show a friend the game? Scroll up and play as a guest — no sign-in. Ready to invite your crew? Join free on mosogame.com.
Join free Play as guestMÖSÖ (also written mösö or moso) is the one thing nobody wants to be. Don't Be MÖSÖ, also known as dontbemösö or dontbeMÖSÖ, is a free browser game at mosogame.com. Some call it the mösögame, others the MÖSÖgame or just mosogame. Same game, same rule: climb higher than your friends, because mösö is loser (#mösöisloser).