Can I use DLC from Origin with the base game from Steam?
In many cases for EA games you can use the key from Steam to also get the game on Origin. This is an automated process, meaning it is quick and can be done at any time, but doesn't work for all games. If this doesn't work you can consider using Origin support and hoping for the best. You can also just buy the DLC and hope for the best, it may still work. But actually getting the game you bought on Steam to show up as owned on Origin is the safest way to ensure that the DLC from Origin will work.
But first – how to acquire a CD key from Steam? If the game supports it, a “View CD key” option will be found when right-clicking it. In the example below, we can see that Crysis 2: Maximum Edition is one such title that does.
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Here is a list of EA games / DLC and their confirmed status:
Game Title Success Notes
Alice: Madness Returns Yes Success
Battlefield: Bad Company 2 Yes Success
Battlefield: Bad Company 2 – Vietnam Yes Success
Battlefield: Bad Company 2 – SPECACT Yes Success
Bulletstorm Yes Success
Burnout Paradise: The Ultimate Box Yes Success
Command & Conquer: Red Alert 3 Yes Success
Command & Conquer 4: Tiberian Twilight Yes Success
Crysis No Origin Rejects Key
Crysis Warhead Yes Register on Website*
Crysis 2 Yes Success
Crysis 2: Maximum Edition Yes Success
Darkspore Yes Success
Dead Space Yes Success
Dead Space 2 Yes Success
Dragon Age: Origins Yes Success
Dragon Age: Origins – Awakening Yes Success
FIFA Manager 09 No Steam Doesn’t Provide Key
FIFA Manager 10 No Origin Rejects Key
FIFA Manager 11 Yes Success
Gatling Gears Yes Success
Mass Effect No Origin Rejects Key
Mass Effect 2 Yes Success
Medal of Honor Yes Success
Mirror’s Edge No Steam Doesn’t Provide Key
Need for Speed: Hot Pursuit Yes Success
Need for Speed: SHIFT No Steam Doesn’t Provide Key
Need for Speed: Undercover No Steam Doesn’t Provide Key
SHIFT 2: Unleashed Yes Success
Spore Yes Success
Spore: Creepy & Cute No Steam Doesn’t Provide Key
The Sims 3 Yes Register on Website*
The Sims 3: Ambitions Yes Register on Website*
The Sims 3: Fast Lane Yes Register on Website*
The Sims 3: Generations Yes Register on Website*
The Sims 3: High-End Loft Stuff Yes Register on Website*
The Sims 3: Into the Future Yes Success
The Sims 3: Late Night Yes Success
The Sims 3: Outdoor Living Stuff Yes Register on Website*
The Sims 3: World Adventure Yes Register on Website*
The Sims: Medieval Yes Success
The Sims: Medieval – Pirates & Nobles Yes Success
WARP Yes Success
I have bought Pinnacle Station on Origin and was able to play it from within my steam version of Mass Effect 1. I had purchased ME1 on steam a few years ago, and the Origin version of PS worked without any issues.
Contact EA live Support and ask them to add Mass Effect and your DLC to your Origin Account while providing them with your keys when asked for.
I did this a while back and they added Mass Effect to my account without any further questions asked.