Please be as specific as possible when letting us know what is missing or incorrect. For example, say "this game's trophy difficulty should be 8/10", with a link to a website corroborating this difficulty estimate (if possible), not "this game's trophy difficulty is wrong".
“Alien Engine” is an incremental game where you need to build a megastructure alien organism in an extraterrestrial style of technology. Pressing a “Square” button on the gamepad rewards the player with currency. The player may spend the currency to purchase items or abilities that allow the player to earn the currency faster or automatically. The goals are to build a full alien engine and earn a billion dollars.