I've barely played any of these but I researched and based them on my tastes and their impact.

1. Ultima 5
2. Wizardry
3. Metal Gear 2
4. Oregon Trail
5. Prince of Persia
6. Sid Meier’s Pirates!
7. Dragon Slayer 4
8. Maniac Mansion
9. Below the Root
10. The Bard’s Tale