Depends but likely difficult (Gaming)

by Blackt1g3r , Login is from an untrusted domain in MN, Thursday, August 06, 2020, 13:53 (1638 days ago) @ yakaman

If it's been mostly developed on one (say, XBox) is it horrific to port to others (PS, PC, Switch)? Does it differ? I suppose it depends.

It entirely depends. It's likely that if a game were mostly developed for XBox and/or PC it's dependent on DirectX for graphics which doesn't exist on other platforms. In that case at a minimum the game would need a new adapter written to replace the DirectX implementation. Worst case it might require a complete rewrite to pull out the DirectX bits of code and put in an abstraction to let them write adapters to make it work on different platforms. There are lots of apis that could tie a game very tightly to a specific platform. Even if the game isn't tightly coupled to a platform's specific APIs moving to a new platform could cause performance problems which might require platform-specific optimizations (due to differences in the OS and/or hardware).