Back in 1995 I wrote a library for creating BBS Door games using RIP graphics, in QuickBasic 4.5. Also created a RIP Door Game of the classic Battleship game. It never went anywhere as most of my local BBSs started shutting down the following year.

I wrote some JavaScript that draws RIP files into a web canvas, and an experimental RIP to SVG converter. It's still incomplete. Here's the source: https://github.com/cgorringe/RIPtermJS

Here's a Demo page where you can see some RIP files rendered in a canvas and as SVG: https://carl.gorringe.org/pub/code/javascript/RIPtermJS/

Specs for v1.54, v2, and v3 can be downloaded here: https://carl.gorringe.org/pub/code/javascript/RIPtermJS/docs...

Some issues with the RIP format:

1. RIPscrip v1.54, the most popular version, was targeted towards 640x350 px EGA graphics, which is an odd resolution with non-square pixels. They tried fixing this in later versions, but they weren't as popular.

2. Non-standard bezier curves and the flood fill algorithm caused issues with rendering. I've had a lot of issues trying to get it working right as the flood fill would leak through holes in lines which aren't rendered exactly like RIPterm did. And the specs don't give details on how they did it.