Palestra

From the letters page: RPG Maker adult game Palestra, by Redflash, is ongoing (version 2.0). It mixes harem, parody and gay, presented with 2D art and animated scenes. You control a male protagonist. Available for Windows, 1.5 GB.

From the box: “Welcome to Harem Builder, in this world, harems are a common thing and as a newly chosen harem leader, you must travel around and find potential members, recruit them and grow your harem! ***Formerly titled `Harem Builder`***”