From Google Play description: Warlock's Duel is a free turn based strategy game. Try your spell casting skills to out smart other players online (PvP) or in a single player mode Two wizards duel in a slow paced battle of wits, casting magic spells at each other, bluffing and misleading each other ("Shadow casting"). Warlock spells are text words, where each word like 'SFW' (Summon Goblin) is a spell, and each letter marks a hand gesture ('S' for snap fingers). Warlocks duel is also known as Spellbinder - the old strategy game that was published by Richard Bartle (1977) about a battle between two wizards (see Wikipedia reference below), and is integrated with the desktop version Waving hands by Ravenblack. This is an open source project, in beta, built by the community.