Adventure!
Action / Adventure (Pulp) History (Alternative) Occult (Psionics / Mentalism)
Attribute/Stat Based (STR, CON, PER, etc) Class Based (Pilot, Wizard, Scientist, etc) Dice (Primarily d6) Level Based (Earn XP and level up) Progression Tree (Skills, professions, magic abilities, etc.) Race Based (Player Race/Species affects gameplay) Random Attribute Generation (during Character Creation) Skill Based (buy or gain skills)
Adventure Game Engine aka AGE is a rules set developed by Green Ronin Publishing. The first Game using the AGE system is Dragon Age.
Other products are being written using the AGE system and this group holds those items that use the AGE rules and are not a stand alone games.