Oxygen Not Included 744825 (macOS)

The problem Oxygen Not Included solves is the same one every colony sim faces: you have a group of duplicants, and they will die without your planning. Food runs out. Oxygen gets thin. Water dries up. And if happiness drops too low, they protest and work worse. The game does not hold your hand.

This version is a hotfix. It stops duplicants teleporting after rescue, fixes a Masterworks skill string, corrects a gasket deconstruction bug, and improves liquid rendering on older graphics cards. The game itself stays the same: you gather resources, mine ravines, build relaxation machines, and try to keep everyone alive. Who will enjoy it? Players who like a genuine challenge, who accept that colonies fail and that you learn by restarting. Who might not? Anyone wanting a casual builder where you can coast. This one punishes mistakes.

Mac compatibility with Apple Silicon

Can I run this on a Mac with Apple Silicon? Yes. The game runs on both Intel and ARM architectures.

Do I need an internet connection? No. Once downloaded and copied to Applications, the game runs offline.

Does it support a controller? The game works with keyboard and mouse. Console controller support is not part of this version.

How long does a colony typically survive? That depends entirely on how quickly you manage food, water, oxygen and happiness. Some colonies collapse within minutes. Others last longer. The game expects failure as part of learning.

Can I save mid-session? Yes. The game allows saving at any point, though autosaves also happen periodically.

A workflow for getting a colony started

Start by choosing an asteroid. Each one has different resource layouts. Pick one with visible water and a nearby ravine.

1. Build a basic shelter first. Your duplicants need somewhere to sleep and store supplies.
2. Assign one duplicant to dig. Tool use comes naturally to some, so check their traits.
3. Assign another to gather food. Do not wait until supplies run out. Build a small surplus immediately.
4. Build an oxygen generator before the first tank empties. Running out of air kills faster than hunger.
5. Monitor bladder fullness and stress. Neglecting these leads to worse task performance and protests.
6. Once the basics hold, expand into the ravine for minerals. Do not send a duplicant alone. Send two if you can spare them.
7. Build a relaxation machine when happiness starts dropping. A colony that works constantly without relief will collapse.
8. Plan for waste. Consuming everything creates waste, which causes disease. Build a waste disposal system early.

Repeat the loop as the colony grows. More duplicants means more mouths to feed and more waste to manage, but also more hands for digging and building.

Memory leak and texture fixes for long sessions

This hotfix is small but practical. The liquid rendering fix matters if you play on an older Mac graphics card. The navgrid memory leak fix helps during long sessions. The texture optimisations reduce memory usage without changing how the game looks.

The duplicant teleport fix means rescued and resuscitated duplicants now stay where they should. Before the hotfix they ended up at the bottom left of the world, which broke the flow of managing your colony.

The gasket fix is niche but useful: deconstructing buildings now spawns the correct gasket element, so you do not lose materials when rearranging your base.

Nothing here changes the core gameplay. It just removes a few annoyances that interrupted the colony sim loop.

• Fixed duplicants teleporting to world bottom-left after rescue and resuscitation
• Fixed Masterworks skill string to mention Masterpiece artwork quality
• Fixed gasket deconstruction spawning the wrong element
• Fixed liquid rendering bug on older graphics cards

• macOS ?
• Intel or Apple Silicon