gog has other adult games there, so it shouldn't be an issue.
To access cheats click replay menu on the top left then click "the do not press" red button on the top right. This pulls up the cheat menu.
After re-reading this, it does sound like a troll but this is the actual steps for the cheat menu.
With all due respect, I'm on this website so my steam friends do not see me playing this type of content. I do not plan to buy on steam but am happy to once this is fully released.
