| 9th Level Games The official KOBOLDS ATE MY BABY!The Beer and Pretzels RPG website. Includes game information, errata, free downloads, and maps. |
| Aetherco Developer of Continuum, the time travel RPG, and Yamara, comic strip and RPG. |
| Alderac Entertainment Group AEG is a publisher of Shadis Magazine - the source of information about hobby gaming industry. Most known AEG games: Shadis and Legend of the Five Rings. |
| Anarchy inK Corporation Publisher of deadEarth. |
| Apophis Consortium Publisher of Obsidian and Shadow Nations. Site includes free supporting material for their games. |
| Atlas Games A publisher of roleplaying games, card games, and board games, including Unknown Armies, Lunch Money, Over the Edge, On the Edge, Once Upon a Time, Ars Magica, Spammers. |
| Atomic Sock Monkey Includes a product list, purchasing and company information. |
| Aurora Games Table top science fiction roleplaying in a world of real science. Our aim: to create a fantastic world of imagination and discovery, where everything is real... or could be real. |
| Battlefield Press, Inc. Includes an online catalog, company information, convention scheduling, and product details. |