Very cool. I'd never heard of OHRRPGCE (Official Hamster Republic Role Playing Game Construction Engine) before. I was going to say it feels like an early predecessor to something like RPG Maker but I think RPG Maker originally came out in the early ’90s for the Japanese PC-98 computers.
From the wikipedia entry [1] for OHRRPGCE
> It runs at an 8-bit color depth, by default creates games that run at a 320 × 200 resolution.
It's funny but I bet anyone else in here who also grew up with the QBASIC interpreter as a kid instantly thinks SCREEN 13 when they read something like this.
[1] - https://en.wikipedia.org/wiki/Official_Hamster_Republic_Role...
:) SCREEN 13 (VGA Mode 13h) is almost correct, but actually it originally used a 320x200 VGA Mode X assembly graphics library. I believe 320x200 instead of 320x240 to be compatible with earlier pure-QB code for SCREEN 13 reused in the engine. (Mode X isn't a single mode, it has some adjustable parameters.)