Note, neither RDA nor the MARC relator terms have a term for game developer, nor is it certain that RDA would consider a developer as a "creator," so these examples are tentative.
Examples:
Dublin Core (elements)
Ubisoft
MODS
Ubisoft (Firm)
contributor
MARC/RDA (note in first element the credit is embedded in the title statement where it is transcribed verbatim from the resource)
245 00 Tom Clancy's splinter cell essentials / $c developed and published by Ubisoft
or
508 Developed by Ubisoft; characters created by Tom Clancy.
and optionally
710 2 Ubisoft (Firm).