Googled it, think it's an engine called Bifrost*. Here's a game that uses it: http://retroasylum.com/knights-demons-for-zx-spectrum-released/ http://retroasylum

Googled it, think it's an engine called Bifrost*. Here's a game that uses it: http://retroasylum.com/knights-demons-for-zx-spectrum-released/ http://retroasylum.com/knights-demons-for-zx-spectrum-releas...