Diablo 2 skills with the same animations, redone with tomb raider graphics. (I don't have a good pc so all I get are the console graphics... On a giant box tv no less. The forest and jungle areas look nice though.) With the gameplay of Rust. (A survival game like DayZ, but with building and no zombies.)
In secret I really just want a diablo2 remake. Don't change anything please!
No man's sky's size ( if it's really that big) mass effect's type of story-telling and weaponry ( with really hard decision making choices) Destiny type aesthetic ( A mix of Halo and Star Wars), Shadow of Mordor's Nemesis system, Star citizen's immersiveness ( with ship's interior and other stuff) Skyrim's spell ( changing their names suitable for a sci-fi game) mix all of those and you'll get the perfect sci-fi game ( i guess) and Add skyrim's size in every planet, then you will get the perfect space sim/rpg