The following files are Single-player:

ALIEN.ZIP
BACKDOOR.ZIP
MILITIA.ZIP
FURY.ZIP
PICKUP.ZIP
FANATIC.ZIP
ENDGAME.ZIP
ISLANDS.ZIP
VILLAGE.ZIP

The other files are Multi-player:

CLIFFS.ZIP
BRIDGES.ZIP
BRIDGES2.ZIP
TOWN.ZIP
REBEL.ZIP

Each .zip file contains a .txt file with instructions and hints etc.