Team Deathmatch - two or more teams play against one another. The game is one of attrition, where points are awarded for frags, and the team that earns the most wins. Added to this is the fact that each team controls one or more power nodes, and that's where the team members spawn from. If a team ever loses control of all of its power nodes, and all of its members die, that team is eliminated. Assault - one team is chosen as defenders, and one or more other teams as invaders.
Map makers can set goals in their maps, which causes the game to operate in one of the styles above.
Servers can override the map settings, if the admin wishes to cater to a particular type of game play. Zithia aims to be a more realistic environment than Serious Sam. Movement speeds are slower for human characters. Air control will be toned down. Players are given five points to distribute among as many skills as they want.