Region | Title | System | Version | Edition | Languages | Serial | Status |
| Gadget: Invention, Travel, & Adventure | MAC | | Original | | TORT-1003 | |
| Gadget: Past as Future (Disc 4) ガジェット ~パスト・アズ・フューチャー~ | PC | | Original | | SYNCH002E3-D | |
| Gadget: Past as Future (Disc 3) ガジェット ~パスト・アズ・フューチャー~ | PC | | Original | | SYNCH002E3-C | |
| Gadget: Past as Future (Disc 2) ガジェット ~パスト・アズ・フューチャー~ | PC | | Original | | SYNCH002E3-B | |
| Gadget: Past as Future (Disc 1) ガジェット ~パスト・アズ・フューチャー~ | PC | | Original | | SYNCH002E3-A | |
| Gadget: Invention, Travel, & Adventure ガジェット | FMT | | Original | | TONP-2002 | |
| Gadget: Invention, Travel, & Adventure ガジェット | PC | | Original | | SYWI-002 | |
| Gadget: Invention, Travel, & Adventure ガジェット | PC | | Shokai Tokuten | | TORT-2002 | |
| Gadget: Invention, Travel, & Adventure ガジェット | MAC | | Rerelease | | TORT-1006 | |
| Gadget: Past as Future (Disc 4) | PC | | Original | | GDGER-CD4 | |
| Gadget: Past as Future (Disc 3) | PC | | Original | | GDGER-CD3 | |
| Gadget: Past as Future (Disc 2) | PC | | Original | | GDGER-CD2 | |
| Gadget: Past as Future (Disc 1) | PC | | Original | | GDGER-CD1 | |
| Geek Gadgets Version 2 | ACD | | Original | | | |
| Geek Gadgets Version 1 | ACD | | Original | | | |
| Geek Gadgets May 98 Snapshot | ACD | | Original | | | |
| Gadget & the Gadgetinis | PC | | McDonald's Happy Meal | | | |