Apps similar to LIKO-12 include TIC-80, which is free and open source. Other options are Mini Micro, Pyxel, PICO-8 and Pixel Vision 8. There's no shortage of Game Development Tools like LIKO-12, with more than 25 alternatives for Windows, Linux, Mac, the web and self-hosting.
CHROMA-60 is a Fantasy Computer programmed in assembly language for an emulated 8-bit CPU and has a scanline based renderer that supports raster effects and allows for very colorful images despite the 1-bit display.
PQ93 is a fantasy console for making small games. It is available to download and run natively, but you can play the demo in-browser above. Included in PQ93 is a command shell and editors for code, sprites, sound effects, music patterns, and maps.
