Space Marine 2 is out, but if you're too broke to pick it up, then Roblox may have the solution for you.

Fly to Space is an incremental Roblox game where your goal is to fly as high as possible. You’ll run around to collect Rockets, open eggs to earn stat-boosting pets, and fly as high as you can ...

Roblox is a platform where anyone can publish games, and some fan developers have used it to create epic tributes to the grim dark Warhammer 40,000 universe.