Below is a list of Somnium: Redux's canon events from the various games in the Dragon Age series.
DRAGON AGE: ORIGINSElissa Kahrin Cousland is the Hero of Ferelden (and wow is she unhappy about this).
Redcliffe: Allowed the Blood Magic ritual sacrificing Isolde and allowing Morrigan to defeat the demon to save Connor.
Circle of Magi: She Accidentally All the Magi. Oops. She didn't allow the annulment, but she did wind up recruiting the Templars. Wynne died during a confrontation involving Morrigan (unless someone wants to play her, of course).
Orzammar: Supported Bhelen after a long and drawn out process of running for both of the candidates. The Anvil of the Void was destroyed, and Shale was taken to Kadash Thaig to regain her memories.
Brecilian Forest: The Warden brokered an agreement between the Wereolves and Dalish, resulting in the ending of the Curse.
Urn of Sacred Ashes: Did not defile them. Got a little chewed on by Not Andraste. (If no one wants to play Sten, Kahrin did duel him here for being a jerk and sent him packing.)
Avernus: Dead. Sophia Dryden: Did not deal with. Dead.
Landsmeet: Let Alistair duel and kill Loghain, made him King, and then dumped him, going back on her word to marry him.
Dark Ritual: Begged Alistair to do it, insisting that she would sacrifice herself if he didn't.
Witch Hunt: Kahrin let Morrigan go.
DRAGON AGE: ORIGINS - AWAKENINGChose to protect the farmlands. The Vigil was repaired and stood. Amaranthine was defended. The Architect found some swords in his soft parts, making his entrails his extrails.
DRAGON AGE 2Garrett Reginald Hawke is the Champion of Kirkwall.
Act I: Hawke took Carver into the Deep Roads but left Bethany behind. This resulted in Carver as a Grey Warden recruit and Bethany as a Circle mage (unless a player wants to be a Warden). While in the Deep Roads, Hawke sided against the Rock Wraith.
Act II: Hawke killed the Arishok.
Act III: Hawke helped Anders with the sela petrae quest and later was furious with him. Obviously he didn’t kill him, but Anders and he are done. Hawke did not help Merrill with anything which had to do with demons, so did not have to kill the Dalish clan. In the final battle, Hawke sided with the mages.
Other stuff: Hawke didn’t like being used as a pawn by Petrice and helped Ketojan as far as he could. He rescued the young templar who was caught by the demon at the whore house. Feynriel was sent to the Dalish at first and then told to flee to Tevinter
Companions: Hawke tentatively supported but had many issues with Anders. He had a friendship with Isabela and had a fling with her (if approved by her player). He refused to help Merrill with her mirror and rivaled her. He liked Fenris but clashed because of issues with mages. He had many sibling issues with Carver but loved him. He befriended Varric and convinced him to leave Bartrand alive. He liked Aveline despite the fact that they didn't always agree. Sebastian and Bethany are to be decided by their future players.
Fenris | Warrior | Tevinter Fugitive
"You see what I am. Lie to yourself if you must."

Signature art by Neonowls.