1/6日から1/13日 1:00時までFREE [EPIC] Kerbal Space Program

https://store.epicgames.com/p/kerbal-space-program

In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.