POKEY (Atari 400, 800, 1200XL, 800XL, 600XL, 5200)
The chip can emulate the SID chip by playing three channels of samples, summed together, on a single volume-only Pokey channel (this is faster than three separate digi channels and only slightly degrades audio quality). The replay rate is 15.6 kHz. Dynamic range is 24 dB (8dB per channel). Read more about it here.
Lemmings (XL)
Hivmania
Helicops
Draconus (Atari)
Rebound (HB)
Black Lamp
Xirius Defect
Tempest Xtreem
Zybex (Atari)
Jet Set Willy (Atari XL)
Red Max
BMX Simulator (Jarre cover/remix)
Warhawk (Atari 8-bit)
Storm
Commando (Atari)
Axilox
Ballblazer (Atari)
The Extirpator (Atari)
Pac-Mania (Atari, unreleased HB)
International Karate/World Karate Championship (Atari)
Jocky Wilson's Darts Challenge
Microx (Shadow of the Beast cover/remix)
The Tail of Beta Lyrae (Atari 800 XL), Intro
Grand Prix Simulator
OutRun (Atari)
Xenon (Atari)
Panther (Atari)
Blinky's Scary School
Master of the Lamps (Atari)
Ninja (Atari)
Ninja Commando
Mountain Bike
Montezuma's Revenge (Atari 8-bit)
Robot Demo (Atari 8-bit Demo)
Aerobics (Atari 8-bit)
Feud
Dimension X
Brutal Recall
Eureka
Conan (Atari 8-bit)
Ghostbusters (Atari), The Death of an Apple (Atari 8-bit Demo), MULE (Atari), The Last V8 (Atari), Alternate Reality: The City (Atari), Elektra Glide, Gyruss (Atari), Axis Slotmachine, Boulder Dash (Atari), Bluemax 2001/Blue Max: 2001,
Goonies (Atari), Frogger (Atari), Bruce Lee (Atari), Chimera (Atari), Frogger II: BtP, Cosmic Tunnels
Homebrew/demo tracks:
https://www.youtube.com/watch?v=pMW44Ih22Go, World of Wonders - Atari Fever (Claas Clever), Bitter Reality - Dragon Bobs (Torsten Karwoth), The German Chaotics - Das Omen, Fred Brooker 1, Fred Brooker 2, Cybernoid II (C64 conversion), More C64 conversions
Lemmings (XL)
Hivmania
Helicops
Draconus (Atari)
Rebound (HB)
Black Lamp
Xirius Defect
Tempest Xtreem
Zybex (Atari)
Jet Set Willy (Atari XL)
Red Max
BMX Simulator (Jarre cover/remix)
Warhawk (Atari 8-bit)
Storm
Commando (Atari)
Axilox
Ballblazer (Atari)
The Extirpator (Atari)
Pac-Mania (Atari, unreleased HB)
International Karate/World Karate Championship (Atari)
Jocky Wilson's Darts Challenge
Microx (Shadow of the Beast cover/remix)
The Tail of Beta Lyrae (Atari 800 XL), Intro
Grand Prix Simulator
OutRun (Atari)
Xenon (Atari)
Panther (Atari)
Blinky's Scary School
Master of the Lamps (Atari)
Ninja (Atari)
Ninja Commando
Mountain Bike
Montezuma's Revenge (Atari 8-bit)
Robot Demo (Atari 8-bit Demo)
Aerobics (Atari 8-bit)
Feud
Dimension X
Brutal Recall
Eureka
Conan (Atari 8-bit)
Ghostbusters (Atari), The Death of an Apple (Atari 8-bit Demo), MULE (Atari), The Last V8 (Atari), Alternate Reality: The City (Atari), Elektra Glide, Gyruss (Atari), Axis Slotmachine, Boulder Dash (Atari), Bluemax 2001/Blue Max: 2001,
Goonies (Atari), Frogger (Atari), Bruce Lee (Atari), Chimera (Atari), Frogger II: BtP, Cosmic Tunnels
Homebrew/demo tracks:
https://www.youtube.com/watch?v=pMW44Ih22Go, World of Wonders - Atari Fever (Claas Clever), Bitter Reality - Dragon Bobs (Torsten Karwoth), The German Chaotics - Das Omen, Fred Brooker 1, Fred Brooker 2, Cybernoid II (C64 conversion), More C64 conversions