Let's build a list of game studios that allow monetized LP's! : Games

Company Game(S) Permission Condition Source
Subset FTL YES None? ftlgame.com
Level Up Labs Defender's Quest YES None me!
Gaslamp Games Dungeons of Dredmor YES None? forums
Facepunch Studios Garry's Mod YES None? site
Romino Games Awesomenauts YES None? site
Carbon Games AirMech YES None? site
Cold Beam Games Beat Hazard YES Link to game's BUY page faq
Positech Games All YES None this thread
Winter Wolves All YES None this thread
Mojang MineCraft YES Some---> terms
Riot Games League of Legends YES Some---> terms
Sinister Design All YES None this thread
Torn Banner Studios Chivalry: Medieval Warfare YES None faq
Robotronic Games Gnomoria YES None site
Electro Chango S.A. de C.V. Kerbal Space Program YES None faq
Tripwire Interactive Killing Floor YES None site
TaleWorlds Entertainment Mount & Blade YES None forum
Robot Entertainment Orcs Must Die YES None site
The Indie Stone Project Zomboid YES None forum
Wulven Studios Shadow Era YES Some---> terms
Re-Logic Terraria YES None faq
SMP Towns YES Some terms
Goldhawk Interactive Xenonauts YES Some terms
Devolver Digital All YES Assuming their tweet was not a joke tweet
Blizzard All YES Some---> terms
Chucklefish Starbound YES PLZ link to site faq
Valve All YES None site
Simon Roth Maia YES None site
Paradox Interactive All? YES? See terms pdf
Mike Bithell Thomas Was Alone YES None tweet
Nintendo All NO Ad $ goes to Nintendo kotaku
TameTick All (Cardinal Quest dev) YES None this thread
FlipFly All (Race the Sun dev) YES None tweet
Divine Knight Gaming All YES Insists permission is not required on fair use grounds tweet
Northway Games All (Incredipede, Rebuild dev) YES None site
FrozenByte] All (Trine dev) YES None site
Microsoft Game Studios All MAYBE I think LP's are allowed, but doesn't seem like ads/$ rules
OwlCave All YES None site
Elefantopia McDroid YES None this thread
AlwaysGeeky Vox YES None tweet
Team Meat/Edmund McMillen All? YES? None formspring
Capybara Games All YES PLZ Link to site site
Sophie Holden All YES None this thread
Sean Hogan Anodyne YES None this thread / site
DrinkBox Sutdios All (Guacamelee dev) YES None site
Christine Love All YES None site
ystygames All YES None site
isaac karth All YES None tweet
arges systems All YES None this thread
Zeboyd Games All (Cthulhu Saves the World dev) YES None twitter
Take-Two All YES? Seems to allow LP's/ads, but see terms--> terms
Atlus All MAYBE Email them alloyseven
CD Projekt Red All MAYBE Email them alloyseven
Dark Vale Games All MAYBE Email them alloyseven
Daydalus Studio All MAYBE Email them alloyseven
Deep Silver All MAYBE Email them alloyseven
Digital Extremes All YES None site
Double Fine All YES None site
EA All MAYBE Email them alloyseven
Epic Games All YES Some---> terms
Firefly Studios All YES None terms
Frictional Games All YES None forum
Focus Home Interactive All MAYBE Email them alloyseven
Grinding Gear Games Path of Exile YES None faq
Hairbrained Schemes Studio library MAYBE Email them alloyseven
Hi Rez Studios library MAYBE Email them alloyseven
Kalypso Media library MAYBE Email them alloyseven
Klei Entertainment library YES None site
Konami library MAYBE Email them alloyseven
Nordic Games ArcaniA Gothic MAYBE Email them alloyseven
Red 5 Studios library YES None site
Runic Games library MAYBE Email them alloyseven
Signal Studios library YES None forum
Subsoap library YES None site
Team 17 library YES None site
TopWare Interactive library MAYBE Email them alloyseven
Trion Worlds library YES Some--> terms
Ubisoft library MAYBE Email them alloyseven
Valorware library MAYBE Email them alloyseven
Warner Bros. Interactive library MAYBE Email them alloyseven
Puny Human Games Blade Symphony YES None this thread
Humble Hearts Dust: An Elysian Tail YES None tweet
Cellar Door Games All YES None tweet
Logic Artists Expeditions: Conquistador YES None this thread
ClockBot Games libary YES None this thread
Badland Studio Kinetic Void YES None site
Golden Hammer Software library YES None site
Code Avarice Paranautical Activity YES None site
Eyebrow Interactive Closure) YES None this thread