Download size

How many GB is Mars Mirage?

3 GB

That is less than the typical Simulator game, which needs about 4 GB.

Leave at least 9 GB free: games need headroom to unpack updates.

The figure is the storage Steam lists as required for this game, not a measured download.

This is a first-person rule-based horror puzzle game. You unexpectedly get a job, complete the observation work at the Mars exploration base, and receive a huge reward. But on the first day of work, you saw a very strange "rule". You need to "complete your mission" while ensuring your own survival.