When comparing Oxygen Not Included vs Factorio, the Slant community recommends Factorio for most people. In the question“What are the best 2D games on Steam?” Factorio is ranked 22nd while Oxygen Not Included is ranked 45th. The most important reason people chose Factorio is:
With proper planning, users can "code" together very precise ways to create all the things needed for the game, some in very inventive ways that can differ quite a bit. This allows for tons of replayability.
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.
Pro Endless solutions
With proper planning, users can "code" together very precise ways to create all the things needed for the game, some in very inventive ways that can differ quite a bit. This allows for tons of replayability.
Pro Under active development
The game is still in Alpha which means endless future possibilities.
Pro Massive and infinite procedurally generated world
The playing world is as large as you want to explore, it automatically generates it as you explore more areas.
Pro Cooperative or PvP building
Factorio also supports multiplayer, allowing many players to cooperate and assist each other, or work against each other in PvP. By default, multiplayer games run the CO-OP freeplay scenario where all players work together to launch a rocket with a satellite into space.
Pro Charming old school graphics
While not the most technically advanced graphics the look of the game is much like a game from the 90s but seeing it in action when an assembly line starts moving there is an impressiveness to it that suits the game quite well.
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.
Con Can become rather repetitive
There's really little payoff for being able to build really long chains of automation, it usually results in being able to open a new tech tree which allows the player to continue the process of building automation chains ad infinitum, which, admittedly can become rather boring after a while.
Con Still in Early Access
The game is still in Early Access which means there will be bugs as well as missing features.