I think such games are created for short-term investment. Like MLM, only all the mechanics are hidden in the gameplay, such as the same Golem Overlord.
Therefore, when the game has been running for a long time, everything is fine.
But as soon as something is changed in the blockchain libraries, the code update is immediately required. But since the game is no longer needed by anyone - it has died, then no one is doing this. This is where bugs come from. The game just hangs on the server and continues to work somehow.