You need to design your system with appropriote trade-offs. If you want to be everything to everyone you will end up in mess you describe. Cross-platform game,

You need to design your system with appropriote trade-offs. If you want to be everything to everyone you will end up in mess you describe. Cross-platform game, coreutils or LOB are all different beasts. Unity shows how API surface level will get polluted as you strive for speed in your cross-platform game, but on the flip side you run on all platforms without overhead. I tend to use DDD and the egg-shell pattern, building a domain / service model in portable code, and leaving the platform specific code to the outer shell behind a refined abstraction. I dont have any APIs with overloads, but sometimes the backing API is a no-op.