ESA (Entertainment Software Association) represents major publishers; "ESA-protected" means actively enforced copyright. Downloading without authorization is illegal.
Legal Acquisition Channels
Official Storefronts: Steam, Epic, GOG, PlayStation Store, Xbox Store, Nintendo eShop, Battle.net, Ubisoft Connect, EA App.
Subscription Services: Xbox Game Pass, PlayStation Plus, EA Play, Ubisoft+, Apple Arcade — access while subscribed.
Physical → Digital: Rip your own carts/discs (format-shift) — legal gray area; US DMCA allows for archival if you own original, but circumventing DRM is illegal.
Abandonware? No legal category. Rights persist until 70–95 years after publication. Some publishers release freeware (e.g., Battlefield 2, SimCity 2000 on Origin) — only those are legal.
Risks of "Free Download" Sites
Malware, ransomware, credential theft.
ISP copyright notices → fines / service termination.