Games published and developed by OPeNBooK Co.
Based in: 
Japan
Established in: 1993
JapanEstablished in: 1993
| game | genre | released | developer? | publisher? | |
|---|---|---|---|---|---|
 |
SimTower | simulation managerial simulation |
1994 | yes | no |
 |
Yoot Tower | simulation managerial simulation |
1999 | yes | no |
