The Outer Worlds: Spacer's Choice Edition

The achievement unlocks the 300th time you use the inhaler by pressing . For convenience, turn on the achievement tracker. Designate this achievement as a favorite so you can track its progress. The first slot in the inhaler is reserved for Adreno as the default healer. Even if you never buy it, many hundreds of Adreno units can be found throughout the game.

Note that, if you are going to play more than one game, the achievement tracks across multiple games. It is very probable that you will not need to heal 300 times during normal game play. If so, you may want to grind it. With the achievement tracker on, make a save. This is Save A. Press repeatedly until you exhaust your supply of Adreno. Make a second save (Save B) to update the system file and ensure your progress is recorded. Reload Save A and, once again, exhaust your supply of Adreno. Save. You can overwrite Save B since its only purpose is to update the system save file. Continue this process, monitoring the tracker as you do so, until the achievement pops.

Be aware that frequent use of the inhaler may trigger the drug addiction flaw. You do not have to accept it. If you do, it is one of the flaws that counts towards the following:

With this in mind, you may want to grind for this achievement in conjunction with working towards the Flawed Hero Achievement.