This page contains information about many of the optional missions that are available in S.T.A.L.K.E.R.: Shadow of Chernobyl. In the end the aim is to include all optional missions, but for now it simply covers the majority, I hope .
The list is sorted alphabetically - initially by the names of the persons giving out optional missions, and then by the actual mission names themselves (as they appear in the dialogue options).
Please note that any character giving out optional missions will only have a maximum of four available at a time. To reach other missions, you need to pick up the available missions and either complete them or refuse to do them; eventually different missions should become available.