Exilegard

Exilegard is an open source miniature skirmish wargame where you lead a warband of exiles through a dying far far future sci-fantasy setting. The game uses preplanned alternating activation and asymmetrical RPS combat with dice. Your warband has a common pool of HP and you choose if miniatures die when they take damage. You will also need to pay attention to cover and flanking in order to win. —description from the designer