i was researching fortnite game hacks for fun a year ago and found some forums. they looked fairly active. the main part of the forum was selling real aimbots/wallhacks for the game. think it was $15-60 for a license to it. if u keep searching you will find such communities exist for every casual/competitive game if it is popular enough. subscription model can work here too like
@oldguyjoe mentioned. these tools need to be maintained, patched, upgraded. main ingredient i saw is you have to build a community around it. could be as simple as maintaining a discord server.
game hacker users are split into 2 groups. casual users using free tools that are "ok" and get you banned due to anti-cheat detection. and enthusiast users with paid tools that are better and less likely to be detected.
my main problem with this niche is most gamers are kids. kids don't have a credit card. i understand the age of avg gamer is growing these days. just something to consider.
as for cracks, all that stuff is free. pirates have the tightest wallets.
"fake" game tools can be lucrative here because they are free/appealing. however the heydays of content locking that have peaked and is in a decline.
@oldguyjoe you made me think of all those prestigious gaming tournaments you see on twitch with big cash prizes.
there's always a few stories per month of users being accused of cheating and some getting caught red handed.
if you could make solid hacks and appeal to those players in leagues, you could potentially sell unethical gamers with a high price tag hack tool.