dREAL Max

From the introduction:
dREAL is designed for games about relatively normal people in a
world that works pretty much like reality. This ruleset is not designed for games about heroic characters with larger-than-life attributes and an ability to triumph against impossible odds, nor is it designed to simulate the narrative immunity of main characters in TV shows and comic books. Instead, dREAL tries to simulate the real world.

dREAL MAX is the ‘all options turned on’ version of these rules, with feats, encumbrance, attacks of opportunity, the lot. The much simpler dREAL Lite is also available.