Lan based but able to connect over the internet
2 players only to begin with or 1 and ai
so yes to multiplayer and ther is no engine preference as long as the game plays good shaders are not nessarry id rather rely on good game play
art and stabillity for the moment i just want to focus on getting a small
1 level demo working all levels will be in model format
bsp for collission only if nessarry
alternatly a lower res collission model