Scoobes on 07 July 2013
I think it's a toss up of these:
Bethesda: 2 IPs, 3 open-world RPGs, all GOTY winners
Bioware: 2 IPs, 5 games, 3 of which were GOTY winners/candidates, and 3 of which were multi-genre.
Valve: Multiple IPs (Counterstrike, Portal, Half-Life, Left 4 Dead etc.), all GOTY material.
Naughty Dog (most improved this gen imo): 2 IPs, 4 games, all GOTY quality.
