These are games commercially produced for consoles and devices but without permission from software and possibly hardware copyright and patent holders, and while possibly using content from existing games, are not ROM hacks or game mods. Unlike solely unlicensed games, unauthorized games infringe on one or more intellectual properties owned by companies. As a result, games in this category may include those removed due to court rulings and similar actions.

The category may include, but is not limited to, commercially based video game clones.