1)   X-COM 2.75
Peer2Peer Secure Instant Messenger and Chat Features: - encrypted communications (Blowfish / 56 bit): - encrypted instant messenger - encrypted public chat - encrypted file transfer

 2)   Laser Squad Nemesis 3.09
The award winning strategy game from the creators of the X-Com series. Play Marine, Machina, Spawn or Grey campaigns against a devious AI opponent, or play online against human opponents in competitions and tournaments with over 100 maps.