How can I activate the built in debugger in FreeSCI/Sierra SCI0 games?
The combination is LeftShift + RightShift + PadMinus. Together with DosEMU for X and dosdebug, it is almost fun to debug the inner parts of the SCI games. An alternative is to execute “push0” and “callk SetDebug” in sequence. If you don’t know what this means, it wouldn’t have helped you in the first place. In FreeSCI, the same can be achieved by pressing Ctrl-Grave (the Quake console key).