When comparing No Man's Sky vs Kerbal Space Program, the Slant community recommends Kerbal Space Program for most people. In the question“What are the best indie games on Steam?” Kerbal Space Program is ranked 12th while No Man's Sky is ranked 63rd. The most important reason people chose Kerbal Space Program is:
There's [a plethora of mods](http://www.slant.co/topics/706/~what-are-the-best-kerbal-space-program-mods) available that can change every single aspect of the game.
Ranked in these QuestionsQuestion Ranking
Pro Freedom to choose how you want to play
Ally with factions, trade or just be a pirate. When trading with NPC aliens, you build up a positive reputation with the faction they belong to. Alternatively you can also be hostile and attack trade ships, or even be attacked by NPC pirate spaceships. Both can be ways to get what you need, so do whatever suits your play style.
Pro Endless procedural generation
This game procedurally generates almost everything. Your spaceships are procedurally generated, so are the planets, moons, every animal on these planets, the resource nodes, trade routes, languages, etc. When discovering new species or planets, players get to rename these and leave their mark on the galaxy.
Pro Good graphics
The art style of this game is very colorful and saturated and uses hues in a way that it gives you an otherworldly feel. Graphics like these tend to remain good for a much longer time than classic 3D graphics.
Pro Seamless space to planetary flight
Pro Massive galaxy to explore
Thanks to the fact that the entire galaxy of No Man's Sky is procedurally generated, the amount of planets to explore is almost endless. The number of planets would be 18,446,744,073,709,551,616. However, the fact that 2 players managed to find each other in game on the first day, seems to make this number quite questionable.
Pro Huge modding scene
There's a plethora of mods available that can change every single aspect of the game.
Pro Teaches orbital dynamics & rocket design fundamentals in an accessible manner
The physics engine does a reasonably accurate job of replicating the fundamentals behind both orbital dynamics and rocket design, so by going through the tutorials and experimenting, you're actually learning some real rocket science.
Pro You don't get bored with it, and you will learn a lot
Build rockets, space planes, space stations, rovers, landers, probes. Explore planets, moons, capture asteroids. With the addition of mods you can even test warp drive, set up a communications network, colonize a planet, mine for resources and much much more. It can even simulate our solar system (the in-game one is very similar, although smaller to encourage new players.
Learn orbital mechanics. Inspire yourself to learn about space and space travel history of human. This game is not only fun - it is inspiring.
Pro Construction sandbox for building and launching rockets
Kerbal at its core is a rocket building and launching sandbox.
Pro NASA working on a mission pack for the game
While not released yet NASA is working on a mission pack for the game.
Pro In constant development
KSP is a shinning example of early release done right. The currently available game is fun to play, and the developers are constantly adding new major additions.
Pro Fun sandbox mode to experiment with rocket designs
The rocket designer lets you experiment with as many different rocket designs as you can think up. The designer is based on components such as engines, fuel cells, structural elements and various other items such as parachutes.
Con No clearly defined missions
The objective of the game is to ultimately reach the center of the galaxy. However, the player is completely free and unguided from the beginning. You figure it out for yourself as you start mining, crafting and upgrading your ship and gear. This game doesn't have a big story to tell.
No Man's Sky is a pretty big production for an indie game as the team of devs and artists consisted of 14 people in the later stages of development. The game stands out above most indie games in size, features, technology and graphics. Along with the amount of enthusiasm from the gaming community, this has allowed the studio to set the launch price at $60 (or €60).
Con Steep learning curve
Kerbal Space Program is not really a pick up and play title. There is much to learn before grasping the core concepts of the game,
Con Graphics are not the most detailed
The graphics of KSP are not the most detailed but they work non the less.