Beholder 2
52 Achievements
GOG
Hecatomb
Transfer the Heimdall control to De Salvo
0.6%
How to unlock the Hecatomb achievement in Beholder 2 - Definitive Guide
TheGasMan
One of the ending choices. At the final terminal, choose Add administrator, DeSalvo (you will need 150 Heimdall codes and he needs to be alive/not in jail).