You're right, i could not believe but price really = 100$. But it was changed this way, not approved by valve from beginning (only 8$). It is clearly a scam specifically for this reason, to sell for cheating giveaways. There can be no other reason. Unless money laundering?
Find the objects that are hidden on the map.
store.steampowered.com
The player needs to climb the building by clinging and climbing the walls.
store.steampowered.com
Edit >
This review tells you all to know about the world of "asset flip"
Edit 2nd > I see, this is actually all about faking sale. by making 100%, then runs 90% off all the time as if it is great deal, but is scam. Side effect is people found this use to cheat giveaway that dev probably didn't think about at the time, but maybe is happy to use to sell more keys