Factorio vs Prime World: Defenders
Factorio
Factorio is a simulation game where you build, expand and maintain a series of factories. The game will require you to take control of the entire production line from obtaining resources you need right up to packaging the final product while constantly upgrading and modifying every aspect of your factories to improve their productivity. As your enterprise grows, you'll eventually unlock a plethora of technologically advanced machineries, tools and hires that are basically a lot better than what you currently have.That's not all, apparently the world you'll be setting up your factories in isn't very "factory-friendly". Expect to have to deal with frequent attacks by the local inhabitants. You might want to set up turrets, walls, and other defensive structures to protect your machines from damage that will, god forbid, disrupt your production line.
Interestingly, the game has a cooperative multiplayer game mode where you can work with your friends to create a massive factories-filled world. The game may sound like an endless freeplay sort, but there are some fun challenges for you to complete as well as a Map Editor for you to create new maps to play in.
Factorio is the sort of game that will appeal to players who like managing stuff, namely fans of tycoon-like games. It also has a nice little tower defense-like element to it that spice things up a bit, along with other events that will put your problem-solving skills to the test.