The QBRPG database is a big collection of QuickBASIC/QBasic RPGs programmed by a number of different programmers.
This database allows you to download RPGs, search the database for a specific RPG(s), or just browse the database. Included with each entry is a screenshot of the RPG which serves as a sort of preview, the filesize, the format (e.g. BAS/EXE), and a rating which I've given the RPG.
The QBRPG database currently contains 131 RPGs.