Well many game engines including Source and Call of Duty are derivative of the Quake engine, and Doom 3 used a modified Quake 3 engine. So probably the Quake 3 engine could be used, especially since it is open source.
Hm. Well maybe something new can be derived from the original Doom engine. But that seems like a lot of work for little payoff when compared to other, newer engines. The performance would be way better though.
Well many game engines including Source and Call of Duty are derivative of the Quake engine, and Doom 3 used a modified Quake 3 engine. So probably the Quake 3 engine could be used, especially since it is open source.
No I meant the original DooM
Hm. Well maybe something new can be derived from the original Doom engine. But that seems like a lot of work for little payoff when compared to other, newer engines. The performance would be way better though.