When comparing RimWorld vs Oxygen Not Included, the Slant community recommends RimWorld for most people. In the question“What are the best 2D games on Steam?” RimWorld is ranked 10th while Oxygen Not Included is ranked 45th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Realistic game mechanics
For a light-hearted game, Oxygen Not Included takes laws of physics and biology very seriously. Characters, or Duplicants, require regular meals and fresh water. They can hold their breath, but only for a limited time. Extremely cold and hot temperatures hurt them. Given high enough stress level, they can even experience nervous breakdown that causes them to vomit excessively or start binge-eating colonie's food supplies.
Pro Loveable, cute characters
Every Duplicant has a name and unique appearance, as well as personal traits. They are very cute and funny, which makes you fully invested in their well-being.
Pro Requires advanced planning
This game provides a real challenge when it comes to planning your base's inner layout. You need to take into account gas and fluid dynamics to ensure that your Duplicants have breathable air and aren't intoxicated by contaminated water.
Cons
Con Maps are limited in size, causing you to eventually lose
Since the map size is limited, so is the supply of resources, meaning that sooner or later you invariably loose the game.