| Type | Title | Year | Publisher |
|---|---|---|---|
| North Star Horizon disk | 🟩 INSUA Catalog Utilities | 198? | INSUA [International Northstar Users Association] |
| North Star Horizon disk | 🟩 INSUA DOS Utilities | 198? | INSUA [International Northstar Users Association] |
| North Star Horizon disk | 🟩 INSUA North Star DOS | 198? | INSUA [International Northstar Users Association] |
| North Star Horizon disk | 🟩 POWER! Special Version for INSUA Members | 198? | INSUA [International Northstar Users Association] |