Initial Arcade release, with 4 different gamemodes and 70 2006-era maps, including the maps from HL2: Survivor
KNOWN BUGS:
The first few minutes of gameplay might be laggy because nothing is precached yet. It should clear up by itself as you continue playing
NPC Spawns can be wonky at times, I haven't gone through every map to mark bad spawnpoints quite yet.
Invasion Mode has stability complications on some maps
NPCs rocket to the top of the map if they get killed by fire. I'm leaving this in for now because it is funny