A free app for Android, by Awaken Realms.
Nemesis is a classic board game in which the players take the role of the old men sitting around a campfire. These old men are the only ones who know the true secret of the UFO crash. They know what happened on the night of the crash and they know who was responsible. Unfortunately, they can never prove it.
In order to avoid the dangerous aliens, the players have to keep the secret and pretend that nothing happened. They have to make up a story for the other players, so that they will never find out the truth.
But one day, the truth will be exposed and the players will have to deal with the consequences.