Arena or Swarm

Arena

Top-down co-op brawler. Move with WASD or the arrows (a joystick on touch); you auto-fire at the nearest hostile. Mobs trickle in, loot drops on buys, a BOSS walks to the centre and slams. Boss HP = 400 + 600 x the net SOL of the buy that spawned it, capped at 3,000. Everyone who hit it gets the credit.

Swarm

Grow-and-eat. Eat pellets and smaller players; you respawn at base size after 3 seconds. Loot is a pellet burst. A BOSS is a giant roaming circle that eats players, and splits into pellets when 6 or more players touch it at once. A raid is a shrinking ring for 20 seconds.

Rooms

Up to 50 players per room. When a room is full the next one opens; every room of a coin gets every event. Above 400 players site-wide you join an honest queue. Spectating is free, costs no seat and needs no wallet. The server owns every position: inputs are directions, so nobody can teleport.

Bots exist only in the homepage room, at most 12, always named "bot N", only while it has fewer than 3 players. They never count in any number on this site, and they cannot pop a boss: only real players can.