Games that are not on Steam.
Sims 1 (If I can find the install discs)

Sims 2 Ultimate Collection (Origin)

Sims 3 + all Expansion/stuff packs (steam only has one dlc. All dlc on Origin)

Sims 4 Deluxe Edition (only have get to work)

Need For Speed: The Run (Origin)

Minecraft

Sim City 2000 (Origin)

PopCap Version of Plants vs. Zombies (Origin)

Zuma's Revenge (Origin)

Command & Conquer: Generals (Origin)

Crusader: No Remorse (Origin)

Medal of Honor: Allied Assault (Origin)

Syndicate (Origin)

Theme Hospital (Origin)

Ultima 7&8 (Origin)

Wing Commander 3&4 (Origin)

Heroes of Might & Magic 3 (I can make it HD Edition if I install the HD mod) (GOG.com)

The Inner World (Humble Bundle)

Tetrobot & co. (Humble Bundle)

Titan Attacks (Humble Bundle)

VVVVVV (Humble Bundle)