While that particular page on might refer to a specific indie title or a genre of games, downloading cracked games from such sites carries significant risks. If you are looking for information on this topic from a research or safety perspective, 1. Risks of Cracked Game Sites
Platforms like Epic Games Store and GOG frequently give away full games for free.
Hackers use tools called "decompilers" to find the code responsible for checking if a game is legitimate (the "TRUE/FALSE" check) and force it to always return "TRUE".
Sites that offer "cracks" (software that bypasses Digital Rights Management, or DRM) are often used by cybercriminals to spread malware.