Sandbox: Airtime only, not Urban Terror or Quake 3. Values that differ from UrT are highlighted and named under the run timer. Offline only; times with changed physics are not UrT times.
Allowed everywhere for practice — only recorded runs count. While you are on a server with a timed run going (run timer running or ready), the optimal yaw assist and auto-hop switch off automatically and the HUD says so: server-recorded runs count competitively. Slow motion and rewind work offline only. Bind the keys in Controls → Training.
Your own pk3s stay mounted (also texture packs) and are combined with maps you load from the list.
Multiplayer is experimental.