After an experiment has gone wrong, earth has been turned into a wasteland, and you are one of the few humans who survived. Craft melee and ranged weapons to defend yourself from bandits and aquire food and water so that you don't starve. Now you have the choice, either you stay on earth or you take off to the stars with the help of rockets and live on other planets or even in a space station. You can even turn yourself into a cyborg
and upgrade your body with the help of cybernetic parts. Also you have can highly advanced machines and even unlock teleportation and an nearly infinite storage system.
This modpack also works on multiplayer servers, so you can play it with friends which will make it even more fun.