[PC] DoomRL 0.9.9.7 (2013)

How:
Don't remember, probably found after playing NetHack.
Pros:
- Very accessible for roguelike newbies, the complexity can be explored gradually
- Very replayable, provides several challenges and achievements
- Great atmosphere
- Winning is not close to impossible, unlike many other roguelikes
- Allows for quick sessions
Cons:
- Music is too much intense and distracting

One of my winning characters in the Angel of Berserk (melee-only) challenge.

My PC as of April 2018. Won a total of 3 games (2 easy, 1 medium).

[C64] The Sword of Fargoal (1982)

How:
Read about it on CRPGaddict, bought C64 Forever and played it right away.
Note:
Apparently this is the first game ever with random dungeons.
Pros:
- Simple, yet addictive quasi-roguelike gameplay
- Some interesting game mechanics (proximity sounds, pit traps usable as stairs) and magic spells (beacons, teleport)
Cons:
- Dungeons are quite repetitive
- The game gets almost unplayable from level 15 down
- Very few types of monsters
- Waiting at the temple to heal the character can take a lot of time

Actually, of those 8:54 hours several were spent regenerating health while doing something else.