Have you ever played Dwarf Fortress? I always thought about whether it's possible to implement the Labor Theory of Value in it.
The game itself is pretty much a Communism simulator, but a fortress can't really act or develop without player input. Maybe there could be some system to reward dwarves based on their labor, and some system of administrators to allocate stuff in the fortress when the player decides to retire it (retirement means the game starts to take care of the fortress alone and the player might choose to visit it as an adventurer)
There used to be an economy in DF, but it was a glitchy mess where some dwarves hoarded coins, then employers couldn't pay employees due to lack of coins, then dwarves couldn't afford a house due to homeless, and then the fortress just came to a screeching halt.
Of course, I don't really know how this would make the game more fun than it already is, but it's just a thought.