This depends on three main factors: 1) the game you want to have 2) on the GPU model you have and 3) crypto currency fluctuation.
Generally, older games might be available within some days or hours.
A brand new triple-A title will usually take more time, potentially more than 30 days depending on your available GPU power
Games from Space has many special deals that will in turn reduce how long you need to wait for your pod to arrive.
To get a good estimate you can go to the “Games” section in the app while your engine is running. Next to each game you will get a good estimate of the waiting times.
Once you have selected a POD and exchanged your Space Coins you will receive your Game Key in less than 24h. If you do not get your game in a reasonable amount of time please create a Support Request.