I can recommend https://www.widelands.org/
Don't ask me how many hours I wasted with that, just to experience the wuselfactor. The mission is also quite fun.
Another good timewaster is https://7kfans.com/
But you'll probably only enjoy it if you played the original in your youth.
Another good timewaster is https://7kfans.com/ But you'll probably only enjoy it if you played the original in your youth.