Any plans to support Killing Floor 1 (UE 2.5)?

[Shtoyan]

I'd love to use it :d And if you need anything to make it, I can provide it.

[Calinou]

UE2's renderer subsystem has nothing in common with UE1, so it would be a completely different project at this point. UE1 was still developed in the era of fixed-function GPUs, where UE2 (especially in its later iterations) were starting to be heavily (if not entirely) shader-based.

In general, with UE2, the engine started becoming a lot more complex and games made with it were less interoperable with each other. To my knowledge, it's not really possible to have a single renderer DLL that supports many UE2 games in the same way you can do with UE1.