The map Q3dm2 by original id Software gave me idea. It is no conversion but realized from scratch! So I decided to create HOUSE with different textures, architecture a bit easier and more or less the same gameplay.
enjoy!
Weapons & Power-up: Shotgun - Plasmagun - Railgun - Rocketlauncher - Body Armor - Combat Armor - Haste.
Bots: Skeletor.
Download: House