Kemco, the developers behind a nice array of retro-style RPGs on Google Play, have put almost all of their games on sale for 75% off for a limited time. The sale starts today and will net you one or more of their retro-style RPGs for $1.99 each instead of the regular price of $3.99.
It looks like all of their games except for Symphony of the Origin and Alphadia 2 are a part of this sale. Kemco probably didn't include those two games due to their release being fairly recent. However, you can pick up all of their other titles for pretty cheap.
This sale end on January 27th, 2013 so you have a little under a week to take advantage of it before it ends.
Google Play Link: Kemco RPG Sale