Manufacturers

Loading

Liberator (set 1)

  1. Game infos
  2. Parent and Clones
  3. Sound
  4. Driver
  5. Inputs
  6. Controls
  7. Display
  8. Dipswitchs
  9. Roms list
  10. Chips list
  11. Categories
  12. MAMEinfo
  13. History
Download liberatr.zip (46 KB)
Snapshot

Game infos

Description Liberator (set 1)
Name liberatr
Manufacturer Atari
Year 1982
Runnable yes
System arcade /
Number of players 2P alt
Added to MAME .031
Romset size 46 KB
Romset file 17 files
Romset zip 29 B
Language English
Evaluation 70 to 80 (Good)
Genre Shooter

Parent and clones

Parent This game is the parent

Sound infos

Sound_channels 1

Driver infos

Driver status good
Driver emulation good
Driver color good
Driver sound good
Driver graphic good
Driver cocktail preliminary
Driver protection
Driver savestate yes

Inputs infos

Input service no
Input tilt yes
Input players 2
Input buttons
Input coins 3

Controls infos

type ways minimum maximum sensitivity keydelta reverse
only_buttons no
trackball 0 240 30 10 no

Display infos

type rotate flipx width height refresh pixclock htotal hbend hbstart vtotal vbend vbstart
raster 0 no 240 232 60

Dipswitchs

Roms list

console name bios size crc md5 merge sha1 region offset status optional
arcade 136012.021 256 ffdcd7bc 2ce733203d628e299ec4fb93db8be1598b49142c proms 0 good no
arcade 136012.022 256 3353edce 915308b11096fc1d02acf9b4af806a2a935dd748 proms 100 good no
arcade 136012.107 4096 8a616a63 76794cc4e11048bb6f2628bd8b84c9a7e2e82551 gfx1 1000 good no
arcade 136012.108 4096 3f8e4cf6 a9d0feb0892f343687e00b96f05adb423ee4d659 gfx1 2000 good no
arcade 136012.109 4096 dda0c0ef 6e547c07c1abd17383a4389b0b4ced442ed65ce7 gfx1 3000 good no
arcade 136012.110 4096 6eb11221 355b71812a18cbb2ee4dc20b3622fca1c96e4570 gfx1 0 good no
arcade 136012.123 256 b8c806e0 19b1b9796e1e9a42899a92ec53288d17d5d15fb3 user1 0 good no
arcade 136012.124 256 e51ec78f 224237370c418361a00d62a77d39fa494e7d8831 user1 0 good no
arcade 136012.125 256 52ac8dd9 125d54b562d079b974f2562e71ab7c7a0b97e709 user2 0 good no
arcade 136012.126 256 2e670aa6 a6bcc49d0948d2dfe497c5e3ad4a834fa78f779a user2 0 good no
arcade 136012.200 4096 1e98d21a 92c7cc033c78ae0ce8127d49debe62263404feb1 maincpu e000 good no
arcade 136012.201 4096 d12cd6d0 94474429cbcdbb406eb045152fb158e2a23cd26d maincpu d000 good no
arcade 136012.202 4096 569ba7ea 4812b255886204192ab999d1370550d48438ea81 maincpu c000 good no
arcade 136012.203 4096 b558c3d4 0b09786d696e91b12435a9e76b127c004c32e59a maincpu b000 good no
arcade 136012.204 4096 bcc91827 3bfbe1f1db58437ccd204a857e58695f56819649 maincpu a000 good no
arcade 136012.205 4096 2f071920 8764f3e78451c4968bffb7c7f72d1ed862f4b185 maincpu 9000 good no
arcade 136012.206 4096 1a0cb4a0 595828a07af729a84aab4e0b51e873046b56b419 maincpu 8000 good no

Chips list

name tag type clock
M6502 maincpu cpu 1250000
POKEY pokey2 audio 1250000
Speaker mono audio

Categories

MAMEinfo

0.31 [Paul Winkler]


Artwork available


WIP:

- 0.170: Fully disentangle Liberator from machine\atarigen.cpp [AJR].

- 28th May 2012: Mr. Do - Nightvoice added control panel for Liberator.

- 0.146: Couriersud improved sound emulation for POKEY chip. Changed audio emulation to emulate borrow 3 clock delay and proper channel reset. New frequency only becomes effective after the counter hits 0. Emulation also treats counters as 8 bit counters which are linked now instead of monolytic 16 bit counters. Fixed high pass filters for POKEY. Added POKEYN device based on modern device. Fixed random lfsr generation. Consolidated polynom code. Removed legacy left overs from Pokey code. Added a internal pokey_channel class. This fixed Liberator resets on the planet screen if any wave above 16 (19 or 22) was selected. Convert all remaining drivers to use the modern Pokey device.

- 0.142u3: Angelo Salese removed deprecat.h dependancy and updated irqs accordingly for driver.

- 0.139u4: Aaron Giles added ER2055 device. Changed Liberator over to using it. Other Atari games to follow. Also modernized Liberator driver, added save state support. Moved generalized EAROM handling to atarigen.

- 0.133u1: Renamed (liberat2) to (liberatr2).

- 0.116u3: Changed clock speed of the 2x POKEY to 1250000 Hz.

- 0.114u4: Zsolt Vasvari removed set_vh_global_attribute() and get_vh_global_attribute_changed() from the dozen or so drivers that used it. In the process, made an effort to clean up the video system for these games. The biggest improvements are Route 16, Taisen Quiz HYHOO, Tutankham and Liberator.

- 0.88u3: Aaron Giles improved Liberator. Added new user1 roms (latitude scaler) and proms ($0, 100 - sync).

- 0.77u3: Stefan Jokisch changed Liberator to use proms, proper PROMS are not dumped however. All PROM images were reconstructed from source code, a redump would be welcome. Added user1/2 roms (latitude/longitude scaler).

- 2nd December 2003: Stefan Jokisch modified the Liberator driver to use external PROMs.

- 0.74u2: Added clone Liberator (set 2).

- 0.36RC1: Changed clock speed of the 2x Pokey sound to 1789790 Hz.

- 0.36b5: Changed visible area to 240x232 and VSync to 60Hz.

- 0.36b4: Added (Testdriver) Liberator (set 2). Changed visible area to 256x232 and VSync to 57Hz. Changed parent description to 'Liberator (set 1)'.

- 23rd July 1999: Zsolt Vasvari added another Liberator romset.

- 0.35b4: Changed visible area to 256x256.

- 0.31: Paul Winkler added 'Liberator' (Atari 1982). The Planet picture roms are not in the address space of the processor on the real board, but it is convenient to allow the built-in routines to load the files into memory.

- 14th December 1992: Dumped Liberator (set 1).


STORY:

- The galaxy has been invaded by the evil Malaglon Army. Commander Champion of the Atai Forvce has chosen you to become the Liberator. The people of the universe are depending on you to free them from their evil masters. Your mission: Shoot red flashing missile bases on planet and protect ships from oncoming missiles


Recommended Games (Defence):

The End

Missile Command

Arcade Classics (Missile Command II)

New York! New York!

Radar Scope

Space Zap

Speak & Rescue

Colony 7

Dark Warrior

Demoneye-X

Future Flash

Pleiads

Satan's Hollow

Satan of Saturn

Space Tactics

War of the Worlds

Liberator

Orbitron

Tactician

Raiders

Senjyo

Cosmoswat

Planet Probe

Repulse

D-Con

Alligator Hunt

History


Arcade Video game published 37 years ago:

Liberator (c) 1982 Atari.

The Liberator controls consist of a trackball, fire button, and shield button. The player controls a coordinated attack from four star ships at the corners of the screen. The primary target of the attack are enemy bases on a rotating planet in the center of the screen. The trackball is used to move a cross-shaped cursor. The fire button fires a missile at the cursor's location from your closest ship. The shield button is used to activate force fields around the ships. The shield can only take four hits each round, and the count is shared between all ships.

At the beginning of each level, the player is flying through outer space and spaceships fly on screen from the left and right and leave in an arc. They try to ram into your ships. Note that shields do not work during this stage.

After this stage, the player is taken to a view of a rotating planet. The most prominent enemies are red flashing missile bases. They shoot missiles, fireballs, and star balls at your ships. The enemy bases can also detach from the planet, turn into satellites, and orbit the planet while shooting missiles. Once all missile bases are destroyed, the player moves onto the next level. At higher levels, there is the white master base. It is very intelligent, and it can change the direction or speed of the planet rotation to avoid getting hit.

- TECHNICAL -

Game ID : 136012

Main CPU : MOS Technology M6502 (@ 1.25 Mhz)
Sound Chips : (2x) POKEY (@ 1.78979 Mhz)

Players : 2
Control : trackball
Buttons : 2
=> [A] FIRE, [B] SHIELDS

- TRIVIA -

Liberator was released in November 1982. The arcade game was not very popular and only 762 arcade machines were ever made. The intro price was $2,095.

Liberator is commonly described as the opposite of "Missile Command". The objective of "Missile Command" is to defend your bases from a space-based attack. Liberator's objective is the exact opposite, destroy enemy bases as you orbit their planet.

Liberator features the character Commander Martin Champion of the Atari Force mini-comic books. This limited series was made by DC Comics for Atari and was packaged with certain science-fiction themed games for the Atari 2600 console, including "Star Raiders" and "Defender". The mini-comics were spun off into a full size Atari Force comic series and the Star Raiders graphic novel.

David Drake holds the official record for this game with 14,232,130 points.

- TIPS AND TRICKS -

Missiles can be destroyed, although some split into four smaller particles when destroyed.

Fireballs take four hits to destroy, but they slow down on each hit.

Star balls take four hits to destroy, much like fireballs. However, unlike fireballs, they return to normal speed soon after being hit.

Flying saucers will sometimes appear from the planet. flying saucers shoot a large, deadly laser which cannot be stopped.

Bonus ships can be earned, but they are not applied immediately. Instead, they are added only after each stage.

After inserting coins, if the player holds the fire button then presses the start button, they will be taken to a level select, allowing them to start at any third level (1, 4, 7... up to 22).

- STAFF -

Designed and programmed by : Dennis Harper

- PORTS -

* CONSOLES:
[US] Microsoft XBOX (nov.16, 2004) "Atari Anthology [Model 26084]"
[US] Sony PS2 (nov.22, 2004) "Atari Anthology [Model SLUS-21076]"
[EU] Microsoft XBOX (nov.26, 2004) "Atari Anthology"
[EU] Sony PS2 (feb.18, 2005) "Atari Anthology [Model SLES-53061]"
[JP] Microsoft XBOX (aug.4, 2005) "Atari Anthology [Model B7X-00001]"

* HANDHELDS:
[US] Nintendo DS (mar.8, 2011) "Atari Greatest Hits Vol.2 [Model NTR-BR7E-USA]"

* COMPUTERS:
[US] PC [MS Windows, CD-ROM] (nov.11, 2003) "Atari - 80 Classic Games in One! [Model 25069J]"
[EU] PC [MS Windows, CD-ROM] (june.10, 2005) "Atari - 80 Classic Games in One! [Replay]"
[US] Steam (mar.24, 2016) "Atari Vault [Model 400020]"
[US] Sony PlayStation 4 (oct.18, 2016) "Atari Flashback Classics Vol.1"
[US] Microsoft XBOX One (nov.1, 2016) "Atari Flashback Classics Vol.1"

* OTHERS:
[US] Nokia N-Gage (feb.2006) "Atari Masterpieces Vol. II"
[EU] Nokia N-Gage (mar.30, 2006) "Atari Masterpieces Vol. II"
Apple Store (2012) "Atari Greatest Hits"
Google Play (2012) "Atari Greatest Hits"

- CONTRIBUTE -

Edit this entry: https://www.arcade-history.com/?&page=detail&id=1386&o=2