/sci/ - Science & Math

Yeah, a lot of games will give you a planet that's much smaller than a real planet would be, for gameplay reasons. Something like Planetary Annihilation has pretty small planets that you can easily see the curvature of, even from ground level.

Try Space Engine if you want some software that generates actual planet-sized planets, and then you can see the effect yourself. Pick one, fly toward it and descend to the surface, you will see how the horizon becomes flatter and flatter as you lose altitude. Eventually, the curvature is totally unnoticeable due to the size of the planet and your proximity to it.

Pic related.