Tactics Elemental, a hentai strategy game developed by Fred GD Art. Published by Perry Art Enterprises. Released August 6, 2017. Download on Nutaku.net for $25.00. For PC Windows. No voice acting.
You are the chosen one, hero Eternial. You must defeat the invading alien force all the while building a harem of beautiful women. Gather a group of girlfriends, and activate your hidden super powers!
Source: N4G PC [NSFW] Hentai Game Review: Tactics Elemental