The game is all about automating a factory. It's basically a survival game with most of the survival and grindy bits ripped out and turned into better crafting mechanics. If you like games like Minecraft or OpenTTD, you'll probably like Factorio.
One of the impressive things they've managed to do is make the multiplayer scale quite nicely--how many other games can say they have 400 concurrent players on one map and still be playable?
Planet side had a hard limit of 133 players per team, three teams so would end up as 399 players per map. But all the maps work together and influence the game play on all maps so the max per server was a lot more. Sdly they took it down and Planet side 2 isnt as good.
One of the impressive things they've managed to do is make the multiplayer scale quite nicely--how many other games can say they have 400 concurrent players on one map and still be playable?