Multicolor Engines for the ZX-Spectrum - Einar Saukas

BIFROST* TUTORIALS FOR PROGRAMMERS

BIFROST* official documentation
BIFROST* Advanced Programming - part 1: moving tiles
BIFROST* Advanced Programming - part 2: moving animated tiles (Buzzsaw style)
BIFROST* Advanced Programming - part 3: moving tiles against an animated background
BIFROST* Advanced Programming - part 4: moving pre-shifted tiles
BIFROST* Advanced Programming - part 5: walking animations
BIFROST* Advanced Programming - part 6: building a platform game
BIFROST* Example: "Knights & Demons DX" source code

BIFROST* TUTORIALS FOR GRAPHIC ARTISTS

ZX-Paintbrush and BIFROST*
BIFROST* for Graphic Artists - part 1: basic concepts
BIFROST* for Graphic Artists - part 2: static tiles
BIFROST* Logo

RELEASED GAMES USING BIFROST*

Knights & Demons DX by Baron Ashler, Einar Saukas & Craig Stevenson
Pets vs Aliens Prologue by Einar Saukas, Jarrod Bentley, Yerzmyey
Complica DX by Einar Saukas, Dave Hughes, Yerzmyey

BIFROST*2 ENGINE

BIFROST*2 overview
BIFROST*2 download

NIRVANA ENGINE

NIRVANA overview
NIRVANA download
NIRVANA Logo

RELEASED GAMES USING NIRVANA

DreamWalker (Alter Ego 2) by Denis Grachev & others
El Stompo by Dave "R-Tape" Hughes
Sun Bucket by Dave "R-Tape" Hughes
MultiDude by Denis Grachev & others
Stormfinch by Dave "R-Tape" Hughes

NIRVANA+ ENGINE

NIRVANA+ overview
NIRVANA+ download
NIRVANA+ wide tiles