PCRobots variant

Hi Corewar gamers

Know this isn't the right group, but hope someone can help me anyway

Years ago I had a kind of PCRobots look a like dos program consisting of
both an integrated editor, compiler and graphical player engine.
The language used was something proprietary but never the less good enough
when introducing a newbee to the world of programming (as far as I remember)

Anyone out there who know what I'm thinking of?

/Kim