Clambering Cubes is a game all about parkour: blocks fall from above in the player's trail, so the player must keep moving as to not be crushed by the blocks.
Simultaneously, lava will rise from the arena floor, and the player has to do parkour in order to survive.
To start the game, mine the gold block in the centre of the lobby. The game will automatically end when the game has finished, all players have died or left.