| Groups (developers) | Abbr. | Country | City | Rating | |
|---|---|---|---|---|---|
| Chip Masters | 0.00 ±0.0 | ||||
| Chmiel | 0.00 ±0.0 | ||||
| Christ's Video Games | 0.00 ±0.0 | ||||
| CIA-Team | Germany | 0.00 ±0.0 | |||
| CIENias | 0.00 ±0.0 | ||||
| Cirrus Software | 0.00 ±0.0 | ||||
| Class Techniques | 0.00 ±0.0 | ||||
| Classic Games Shrine | Poland | 0.00 ±0.0 | |||
| Clever People | 0.00 ±0.0 | ||||
| Club Reba Books International | 0.00 ±0.0 | ||||
| CMV | 0.00 ±0.0 | ||||
| Cobra | Poland | 0.00 ±0.0 | |||
 Code3 | Code3 | Poland | Warsaw (Warszawa) | 0.00 ±0.0 | |
| Collamore Educational Publishing | 0.00 ±0.0 | ||||
| Collin Computer Products | 0.00 ±0.0 | ||||
| Commodore Electronics Ltd. | 0.00 ±0.0 | ||||
| CompCo | 0.00 ±0.0 | ||||
| Completely Grounded Software | 0.00 ±0.0 | ||||
| Compu-Tations, Inc. | 0.00 ±0.0 | ||||
| Compu-Things | 0.00 ±0.0 |
