AvenellCY-1Cyclorama, home
Fiction

Avenell and the Cyclorama never existed. The hardware is real: specified, emulated and playable here.

The company, its people, dates, prices and sales are alternate-history fiction. On this site every in-universe statement sits under a red tally lamp. The machine is not invented: its specification, emulator, development tools and cartridges are real software, and every game picture is a frame a real cartridge drew.

CYC-1005Now playingIn the fiction: Avenell Playhouse · 1988

ERG: STRIPLIGHT

Fly the terminator to the Curfew Engine and relight the Beacon for good.

ERG: STRIPLIGHT, frame 6889, from the real cartridge.

Loading the cartridge (256 KiB)…

F5 Save F8 LoadEscape Power off

Saved states last for this visit. Sound starts with Power.

ERG: STRIPLIGHT needs a keyboard or a game controller. On a phone or tablet without one you can read about the game here, but you can’t play it yet.

1

The cartridge · in the fiction

Avenell Playhouse's second Erg game. The Dawn Beacon has gone out again, and Erg flies a lamp-skiff along the terminator to put out the Curfew Engine. His helmet lamp is both his health and the fuel for the Striplight beam, a bar of light that sweeps a whole row of the screen.

Developer
Avenell Playhouse
Year
1988
Genre
Shoot-'em-up
Technique
lantern

2

Controls

Cyclorama padKeyboardGame controller
D-padArrow keysD-pad or left stick
AZBottom face button
BXRight face button
CCLeft or top face button
STARTEnterStart
Save stateF5—
Load stateF8—
Power offEscape—

Saved states are kept for this visit only. Controllers use the standard layout (Xbox, PlayStation and most USB or Bluetooth pads). Press any button on the controller after powering on so the browser notices it.

3

How to play

After the Curtain Up splash, press Start (keyboard Enter, or a controller's Start button) on the title screen and on each of the two how-to-play pages. Fly the skiff with the D-pad (arrow keys, or a controller's d-pad or left stick). A (keyboard Z) fires lamp pellets: hold it to keep firing. B (keyboard X) fires the Striplight beam: hold it and a bar of light sweeps the whole row the skiff is flying in, hurting every enemy in that row at once. C (keyboard C) slows the skiff to half speed so you can thread narrow gaps. Start pauses. The row of cells at the top of the screen is your helmet lamp: it is your health and the beam's fuel. Every hit costs two cells, and the beam burns about one cell every one and a half seconds, though it will never take the last cell. Glow motes, dropped by some enemies, refill a cell each. Fresnel Cells make the pellets stronger, up to level three; losing a life costs one level. The beam is the right tool against a line of enemies, against armour, and as a lure: moths follow the beam. A Snuffer, a turret on the rock, puts the beam out for a moment when the light touches it, so shoot Snuffers with pellets. Flatlings crawl across the field and lay mines. Each of the four stages (The Gloaming Shelf, Sunken Gantry, The Moth Orchard, The Curfew Wall) ends in a boss: Tallowback, Sluicewarden, Wickmother and the Curfew Engine. Touching the rock or an enemy costs energy too. When the lamp is out you lose one of your three lives and start again from the last checkpoint; there are no continues. Destroy the Curfew Engine to relight the Dawn Beacon and win.

Real software

What is running

When you power on, your browser runs an emulator of the Cyclorama: its CPU, its video chip with the light field, and its Cue sound chip, at the real frame rate. The cartridge is the same 256 KiB ROM the project builds and tests, byte for byte.

erg-striplight · 262,144 bytes · SHA-256 16566af4d02a84b6b10ae09d34ba9b78b761042c758f541b8b4eb814511c3aea

No account and no cookies. Apart from its own files, the page loads one script: Cloudflare Web Analytics, which counts visits and page speed without cookies. The hardware is documented in full: read the HED-0041 hardware and programmer’s manual and the SCRIM language specification. Or go back to the Cyclorama.