| ID | Name | Type |
|---|---|---|
| #3949 | Double 27 | ? |
| #3950 | Double H Software | Z |
| #3951 | Double Headed Secret | ? |
| #3952 | Double M | ? |
| #3953 | Double Play Adventures | Z |
| #3954 | Double Soft | Z |
| #3955 | Double-Jay Software | Z |
| #3956 | Double-Pig-Soft | Z |
| #3957 | DoubleSOFT | Z |
| #21061 | Doublesoft | P |
| #3958 | Doug Anderson | + |
| #3959 | Doug Barnett | + |
| #20170 | Doug Bollen | + |
| #3960 | Doug Burns | + |
| #3961 | Doug Cooper | + |
| #3962 | Doug Davis | + |
| #3963 | Doug Gregory | + |
| #3964 | Doug Hawkins | + |
| #19073 | Doug Holmes | + |
| #3965 | Doug Matthews | + |