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-5002Now playingIn the fiction: Avenell Playhouse · 1992

ERG AND COMPANY

Climb the Dawn Beacon’s tower with Erg, Trundlewick and Spanglejape.

ERG AND COMPANY, frame 12278, from the real cartridge.

Loading the cartridge (512 KiB)…

F5 Save F8 LoadEscape Power off

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

ERG AND COMPANY 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 single-screen climber for one or two players, on a Deep board with a battery save. Erg climbs the tower under the Dawn Beacon with two champions of the Turning Cup, the mirror-sequined jester Spanglejape and the lamp-trolley robot Trundlewick, floor by floor ahead of a rising tide of dark. The light field is both the trap and the tool: where the crew's lights cross past white they wrap into rings that burn the Gogglets out, and three lights crossed at once make the Overdrive's double ring.

Developer
Avenell Playhouse
Year
1992
Genre
Single-screen climber
Technique
overdrive

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) on the title screen, then Start again to leave the how-to-play page. Walk with the D-pad (arrow keys) and jump with A (Z); hold A to jump higher. B (X) is the lamp ability of the member you control and C (C) passes control to the next member of the crew: Erg flares his helmet lamp; Spanglejape holds a mirror beam across the floor while B is held, and can jump again in the air; Trundlewick cannot jump, but B parks him with his flood lamp lit (B again to roll on) and Up hauls him up through the floor above. Down and A drop through a rail (Trundlewick: Down). Gogglets come for a lit lamp and a touch drains it. Where two lights cross past white the light rings: a Gogglet caught in a ring burns out and pops, and in a double ring it pops at once for double points; pops in quick succession make a chain. Your lamp is your life: a lamp that runs out in the rising tide costs a spare lamp, and motes from popped Gogglets refill it. Clear a floor before the tide rises for a bonus. On each area's second floor a hidden door shows when you ring the light on it; stand at it and press Up to reach a lens room. Beat each area's warden by catching its eye in the light, catch the falling motes in the mote shafts, and with all five lenses climb to the Lamp Room to face Umbramarch for the true ending. Start pauses. A second player joins at any time by pressing Start and takes the next member of the crew. Player 2 uses a second controller, or the keyboard: W A S D to move, F G H for A B C, R for Start.

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 512 KiB ROM the project builds and tests, byte for byte.

erg-and-company · 524,288 bytes · SHA-256 ebf6a641b722d071c7ff5d0692fb04ad8c71550e62d6937690a6d94c3a8ef0db

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.