Open source (160)

NetHack Plus

Role-Playing, 1994
Freeware

NetHack: Falcon's Eye

Role-Playing, 2000
Freeware, Freeware, Source code

NGE Nibbles

Arcade, 2003
Freeware (installed), Freeware, Source code

Nibbles (George Tzoumas)

Arcade, 2001
Freeware

Open Quartz

First-Person Shooter, 2004
Freeware, Update

Paku Paku

Arcade, 2011
Freeware

PaybackTime 2

Turn-Based Strategy, 1997
Full version

Pebbles

Puzzle, 1999
Freeware

Pizza Worm

Also known as Zorlim's Pizza Worm

Arcade, 1994
Freeware (installed), Freeware, Source code

Polanie

Also known as Victory

Real-Time Strategy, 1996
Shareware

Polanie CD-ROM

Real-Time Strategy, 1997
Shareware

Prince of Persia

Also known as PoP, Prince

Platform, 1990
Playable demo (installed), Playable demo

Ptakovina

Puzzle, 2017
Freeware, Source code

Purple Martians

Platform, 2001
Freeware (installed), Freeware

The Puzzle Pits

Also known as Puzzle Pits 95

Puzzle, 1995
Full version (installed), Full version, Playable demo

Quake

Also known as QUAKE: The Doomed Dimension

First-Person Shooter, 1996
Shareware (installed), Shareware, Patch, Freeware, Freeware