Picture taken from their Twitter
I bet they will do so for their next game but reimplementing a entire game is FAR easier said than done, something like that could very well bankrupt a smaller studio!
I mean it’s easy to reimplement entire games if you’ve built it modularly. Just swap your core game logic to run on another library and the game works the same it did before.
Edit: 'course, exceptions exist like if you wrote everything using their proprietary coding language, instead of using something universal.
Edit 2: It MAY still be possible that a translation/compiler exists that’ll run as a plugin in a proprietary engine, and converts it into something universal.
The surface area is huge. This is not an SQL database where you can just change the ORM’s backend.
I’ve written game engine wrappers and converters for all sorts of code and file types.
It would honestly be easier to fire up Unreal Engine 5 or Godot and start again.