Always enjoyed airwolf, bombjack, commando, digdug,, boulderdash

Boulderdash (all), Lode Runner, Impossible Mission (1+2), Bruce Lee, H.E.R.O., Jouste, Ghostbusters, Hacker (1+2), Defender of the Crown, Maniac Mansion + Zak McKracken and the Alien Mindbenders, Raid over Moscow, Spy vs Spy, Beach Head, Agent USA, Airborne Ranger, Bagitman, Dino-Eggs, Fire-Ant, Fort Apocalypse, Gateway to Apshai.
I'll probably add some more of my favs later on ;)

M.U.L.E.

Raid on Bungeling Bay is one of my favorites. Arcade action, a programmatically built open world so the map changes on each play, good performance for its day too.

Wizball

https://en.wikipedia.org/wiki/Wizball

Pitfall: hours of fun

Choplifter: a must play game at least once

Bounty Bob: best platformer

Mony on the run: maybe best platformer too, best soundtrack of all time in all video games all categories (IMO)

Jet set willie: if you have thousands of hours, and don't care about the bug where if you jump into another screen and dies before touching the ground, the death jump replays until all your lives are lost. The rocket launch is majestic though.

:-D

The Last Ninja 2 - Probably one of the best C64 games OOT. Killer soundtrack as well. LN1,LN3 good but not legendary.

I really enjoyed “Chimera”. It’s an isometric puzzle game where you play a robot.

And of course “Bruce Lee” is always fun.

Arcade ports on the C64 can be really good as well.

Top 5 reccomedations: Impossible Mission.

Rags to Riches - you are a homeless person and try to build yourself up.

Cops n Robbers - you run around trying to collect money, steal diamonds, watch out for the cops and the ghosts.

Grogs Revenge - sequel to BC’s Quest for Tyres. Ride your unicycle up a mountain and avoid Grog. No idea who Grog is, but he gets you.

Rock n Bolt - puzzle game where you try to bolt moving platforms together in a particular pattern.

Alter Ego - text game, start as a newborn baby and make choices at each stage of your life and see what kind of person you become. There’s a female and male version.

World Games and the other Epyx games (Summer Games, Winter Games etc). The c64 version in my opinion is the best version of these.

IK+ - a pre-Street Fighter fighting game. Looks nice, good animation, it’s fun. There’s a few of these type of games like International Karate and Way Of The Exploding Fist. You might know IK+ already, I think it was on Amiga.

Archon - chess board, good pieces vs evil pieces, doesn’t follow chess rules, just move and fight the other pieces until they’re all taken out.

World Class Leader Board - impressive golf game. I liked it anyway.

Ah yes. The Archons were wonderful as well! EA back then makes me sad for what EA became.

Elite, Lode Runner, Castles of Doctor Creep, Zaxxon

Any of the gold box SSL RPG games. I sunk a million hours into them.

I played the shit out of Jumpman as a kid.