In a roll over system, rolling higher is better. You attempt to beat a specified value by your roll including helpful modifiers and negative penalties. Roll over systems tend to have critical rules that come into play when the maximum possible unmodified outcome on the dice is achieved.
Not to be confused with bend over. That is what happens if you fail.
Games that uses a Roll over mechanic
- d20 system games
- BESM 3rd-edition
- Savage Worlds
- Warhammer 40000 for almost everything except Leadership and other characteristic tests