Developer Page: Siesta
(dev id no. 18 - prev next)
Odd one, this. Their output certainly seems varied at first glance, Rugby and Love Horror Adventures not being genres you'd expect to have much in common, but as it turns out their take on rugby seems to be more of an adventure game with management elements than an actual sports sim. So, there you go. Before that they developed fairly-decent Breakout clone Prism Land, along with a few other PS1 games I've never heard of, although it seems like now they mainly do phone games. Which is a damn shame, really. No one wants to do phone games.
Official Site: http://www.siesta-inc.com/
Simple 1500 Series
The Sengoku Bushou ~Tenkatouitsu no Yabou~
Simple 2000 Series
The Rugby, The Renai Horror Adventure ~Hyouryuu Shoujo~