| Atari 400/800 cart. |  Basketball Model CXL4004 | 1979 | Atari, Inc. CA, USA |
| Atari 400/800 cart. | Battlot Hb | 2022 | Inufuto |
| Atari 400/800 cart. | BC's Quest for Tires Model OTL-201 | 1983 | Sierra On-Line, Inc. USA 20626 |
| Atari 400/800 cart. | Beamrider Model CA-009-04 | 1984 | Activision, Inc. Mountain View, CA, USA 47875 |
| Atari 400/800 cart. | BearJam Model 10031A-3 | 1983 | Chalkboard, Inc. |
| Atari 400/800 cart. |  Berzerk | 1983 | Atari, Inc. CA, USA |
| Atari 400/800 cart. | Big Bird's Funhouse Model 4L-0505 | 1984 | CBS Soft. |
| Atari 400/800 cart. | Big Bird's Special Delivery Model 4L-0109 | 1984 | CBS Soft. |
| Atari 400/800 cart. | Blaster | 1984 | Williams Electronics, Inc. Chicago, IL, USA |
| Atari 400/800 cart. | Bomb Jake | 2009 | GR8 Soft. |
| Atari 400/800 cart. | Boulder Dash | 1984 | First Star Soft., Inc. |
| Atari 400/800 cart. | Boulders and Bombs Model 4L-2540 | 1982 | CBS Soft. |
| Atari 400/800 cart. | Bounty Bob Strikes Back! | 1984 | Big Five Soft. Van Nuys, CA, USA |
| Atari 400/800 cart. | Bristles | 1983 | First Star Soft., Inc. |
| Atari 400/800 cart. | Buck Rogers - Planet of Zoom Model 005-03 P | 1983 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Atari 400/800 cart. | Captain Beeble Model CR1002 | 1983 | Inhome Soft., Inc. |
| Atari 400/800 cart. | Capture the Flag | 198? | Sirius Soft., Inc. Sacramento, CA, USA |
| Atari 400/800 cart. | Carnival Massacre Model THB12011 | 1983 | Thorn EMI Video, Ltd. UK |
| Atari 400/800 cart. | Castle Hassle Model 09-01123 | 1983 | Roklan |
| Atari 400/800 cart. | Castles and Keys Model 13023 | 1983 | Romox, Inc. Campbell, CA, USA |
| Atari 400/800 cart. | Caverns of Mars Model RX8021 | 1982 | Atari, Inc. CA, USA |
| Atari 400/800 cart. | Centipede Model CXL4020 | 1982 | Atari, Inc. CA, USA |
| Atari 400/800 cart. | Checkbook Model CXL8001 | 1980 | Atari, Inc. CA, USA |
| Atari 400/800 cart. | Chess Model 1100 | 1983 | Parker Bros. Beverly, MA, USA |
| Atari 400/800 cart. | Chicken | 1982 | Synapse Soft. Corp. |
| Atari 400/800 cart. | Choplifter! Model ATCART191 | 1982 | Broderbund Soft., Inc. CA, USA 47956 |
| Atari 400/800 cart. | Claim Jumper | 1982 | Synapse Soft. Corp. |
| Atari 400/800 cart. | Cloudburst | 1982 | DANA |
| Atari 400/800 cart. | CocoNotes Model 4L-9847 | 1984 | CBS Soft. |
| Atari 400/800 cart. | Computer Chess Model CXL4009 | 1979 | Atari, Inc. CA, USA |
| Atari 400/800 cart. | Computer War Model THA12010 | 1983 | Thorn EMI Video, Ltd. UK |
| Atari 400/800 cart. | Congo Bongo Model 006-03 | 1983 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Atari 400/800 cart. | Conquest of the Crown | 1994 | Lindasoft |
| Atari 400/800 cart. | Cosmic Life Model COS-AT | 1983 | Spinnaker Soft. Corp. |
| Atari 400/800 cart. | Cosmic Tunnels | 1983 | Datamost, Inc. |
| Atari 400/800 cart. | Creepy Corridors | 198? | Sierra On-Line, Inc. USA 20626 |
| Atari 400/800 cart. | CrossFire Model CFL-202 | 1981 | On-Line Systems USA |
| Atari 400/800 cart. | Crystal Castles Model RX8055 | 1984 | Atari, Inc. CA, USA |
| Atari 400/800 cart. | Crystal Raiders | 2001 | Video 61 |
| Atari 400/800 cart. | Da' Fuzz | 1983 | Roklan |
