Hybris — Native

Hybris, Discovery Software's 1988 Amiga vertical shooter, running as a native program.

There is no emulator to configure and no disk image to mount. Download, unzip, run. It boots from ordinary files, with a controller picked up automatically.

What this actually is

Not a wrapper around an emulator front-end. The game's own 68000 code runs against a purpose-built OCS chipset — copper, blitter, bitplanes, sprites, Paula, CIA — written against what Hybris genuinely does rather than against a spec sheet. Several things had to be implemented because the game visibly breaks without them:

• The score panel is drawn by the copper writing sprite registers directly, repositioning a single sprite for every glyph across one scanline. None of it goes through a sprite list.
• The commander selection highlights one name with a mid-scanline colour change — a copper WAIT with a horizontal target as well as a vertical one.
• The end-of-attract credit scroller is a hires screen.
• The music runs off a CIA-B timer interrupt at level 6.

The display is a full PAL raster at 352×288, presented at 4:3 because an Amiga pixel is not square.

Features

• Boots from files — no ADF, no WHDLoad slave, nothing to configure
• Full controller support, hot-plugged, plus keyboard
• Screenshot-and-state capture on F12
• Runs at a locked PAL 50Hz

Controls

Action	Controller	Keyboard
Move	stick or d-pad	arrows or WASD
Fire	A or RB	Ctrl or Z
Second button	B	Shift
Actions	X, Y	Space, Return
Pause	START	P

Install

Unzip and run ./run.sh (or the executable directly). Linux x86-64; needs OpenGL and X11, which any desktop already has. Run it from its own folder so it finds its data.

Source

github.com/CrownParkComputing/Hybris — the port, the chipset, the disk extractor and the graphics ripper.

Legal note for the page

Hybris is © Discovery Software International. This is a preservation project and is not affiliated with or endorsed by the rights holders. If you are a rights holder and want it taken down, get in touch and it goes.