I love this game, but it's interesting to see how modders tend to design awful over-complicated game design, and the actual factorio developers come to clean up

I love this game, but it's interesting to see how modders tend to design awful over-complicated game design, and the actual factorio developers come to clean up and simplify things so that the game can be playable by normal gamers. This is how space age went into the factorio extension. Popular factorio mods are so complicated that it's more work than entertainment, which is a very important lesson to remember about game design: the effort-reward loop is crucial if you want players to finish your game. If an effort-reward cycle is too long and the player must play 10 hour to get the reward, and the reward isn't that great, the player will be disappointed and he will stop playing. Same for the progress curve: the game must be easy at first, but the difficulty must increase slowly while maintaining that important effort-loop reward. Anyway, I am still disappointed that they did not try to make multiplayer more interesting (ressource economy, allocating land right to build things), or to add more end game objectives, like a bigger alien. There already are some rumors about flying or swimming aliens, and I suggested adding abilities inspired from Zergs in starcraft: Nydus worms, creep, Lurker. This game is great but it's also important to note that it's CPU-limited.