Playing Oxygen Not Included. Is a 2D base management simulation in space where you have to keep your colony alive by producing oxygen and other things such as producing food, power, cleaning waste, making sure temperature levels don't get to high or drop to cold levels. Is really addictive. CO2. water, heat, moral and food become problems balancing, but there are multiple ways to solve it and everybody has their own ways to fix their screw ups if you do one.
To produce oxygen, you need to build a machine that does that. However the machine requires power to work so you also need to build wires to it and also to a machine that produces the energy. Certain machines are much more powerful and can power up a bunch of things at once but it also produces heat around the surrounding area. Unless you keep the heat in check, things go bad really really fast. Oh yeah you also gotta remove the carbon dioxide that builds up in your lower parts of the base and other gases too. If you like base management games, this one might just get you hooked. The game officially released last year but I already see this as a classic. Is also not very demanding its requirements.