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Depthcharge

  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. Samples list
  12. Categories
  13. MAMEinfo
  14. History
  15. High scores
Download depthch.zip (7 KB)
Snapshot

Game infos

Description Depthcharge
Name depthch
Manufacturer Gremlin
Year 1977
Runnable yes
System arcade /
Number of players 1P
Added to MAME .033b05
Romset size 7 KB
Romset file 8 files
Romset zip 4 B
Language English
Evaluation 30 to 40 (Amendable)
Genre Shooter

Parent and clones

Parent This game is the parent

Sound infos

Sound_channels 1

Driver infos

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

Inputs infos

Input service no
Input tilt no
Input players 1
Input buttons
Input coins 1

Controls infos

type ways minimum maximum sensitivity keydelta reverse
joy 2 no

Display infos

type rotate flipx width height refresh pixclock htotal hbend hbstart vtotal vbend vbstart
raster 0 no 256 224 60 5156160 328 0 256 262 0 224

Dipswitchs

Roms list

console name bios size crc md5 merge sha1 region offset status optional
arcade 316-0042.u88 32 a1506b9d 037c3db2ea40eca459e8acba9d1506dd28d72d10 user1 20 good no
arcade 316-0043.u87 32 e60a7960 b8b8716e859c57c35310efc4594262afedb84823 user1 0 good no
arcade 50a 1024 56c5ffed f1e6cc322da93615d59850b3225a50f06fe58259 maincpu 0 good no
arcade 51a 1024 695eb81f f2491b8b9ce2dbb6d2606dcfaeb8658671f25400 maincpu 400 good no
arcade 52 1024 aed0ba1b cb7473e6b3c192953ae1832ab444545ddd85babb maincpu 800 good no
arcade 53 1024 2ccbd2d0 76d8459bbad709666ce0c0be51f1d09e091983a2 maincpu c00 good no
arcade 54a 1024 1b7f6a43 08d7864378b012a735eac4968f4dd86e36dc9d8d maincpu 1000 good no
arcade 55a 1024 9fc2eb41 95a1684da346709908cd66bec06acfaeead596cf maincpu 1400 good no

Chips list

name tag type clock
8080 maincpu cpu 1933560
Samples samples audio
Speaker mono audio

Samples list

name
longex
shortex
sonar
spray

Categories

MAMEinfo

0.33b5 [Al Kossow]


Artwork available

Samples required


Bugs:

- Clone subhunt: Needs an overlay to provide proper color. chowell (ID 02858)


WIP:

- 0.182: Updated labels for clone Sub Hunter (Gremlin / Taito) with locations and added readme from recent dump [Tafoid].

- 0.167: Changed description of clone 'Sub Hunter' to 'Sub Hunter (Gremlin / Taito)'.

- 0.148: hap fixed coin timing regression in VIC Dual driver. This fixed corrupt input and sound in Depthcharge.

- 28th May 2012: Mr. Do - Nightvoice added control panel and marquee for Depthcharge (marquee is thanks to the BYOAC / CAG artwork).

- 0.133u2: hap added a simple color overlay for Depthcharge based on flyers.

- 0.133u1: Renamed (depthv1) to (depthcho).

- 0.113u3: Removed sonarena sample.

- 0.98u3: Replaced Z80 CPU1 with 8080.

- 0.75: Added clone Sub Hunter (Taito 1977). The LOW_NIBBLED roms Dp10 ($0400) and Dp11 ($0c00) are being dumped wrong, they where repaired with the Depth Charge sets.

- 6th October 2003: Stefan Jokisch added Sub Hunter, a clone of Depthcharge, to the vicdual driver.

- 0.74u2: MASH added clone Depthcharge (older).

- 27th September 2003: MASH added a clone of Depthcharge.

- 0.37b7: Added samples (longex, shortex, spray, sonar and sonarena.wav).

- 0.36b5: Samples support in Depthcharge [Zsolt Vasvari]. Added user1 roms ($0, 20) and samples (longex, sonar, sonarena, spray, shortex.wav). Changed description to 'Depthcharge'.

- 3rd September 1999: Zsolt Vasvari sent in a nice update to the Vicdual driver, for example Depth Charge now has samples.

- 0.33b5: Al Kossow added 'Depth Charge' (Gremlin 1977).

- 22nd January 1998: Malcor dumped Sub Hunter by TAITO.

- 2nd June 1998: Dumped Depthcharge.


Recommended Games (Submarine):

Sea Wolf

Seawolf II

Depthcharge

Sub Hunter (Model Racing)

Invinco / Deep Scan

Car Hunt / Deep Scan (France)

Destroyer

Minesweeper

Subs

Wolf Pack

Fire One

Submarine (Midway)

HeliFire

N-Sub

Navarone

Polaris

Sea Battle

Tomahawk 777

Battle of Atlantis

Mariner

Subroc-3D

Battle Cruiser M-12

Yamato

D-Day

Submarine (Sigma)

Turbo Sub

Up Scope

The Deep

Sauro

Battle Shark

Guts n' Glory (Depth Charge + Submarine)

In The Hunt

Ganbare! Marine Kun

History


Arcade Video game published 42 years ago:

Depthcharge (c) 1977 Gremlin.

Depthcharge is a 2-Dimensional shooter. You control your destroyer on the surface of the water while submarines patrol underneath. Your job is to drop depth charges to eliminate these submarines. The submarines aren't defenseless as they launch mines straight up toward your ship.

Depthcharge was one of the early video games. Action was simple. This game also had the ability to retain the highest score (without the initials of course). Although the game is simple in concept, just trying to get enough points was enough to keep you working at it. Good luck on your submarine hunting mission.

- TECHNICAL -

BOARD # 814-0002
Prom stickers : 50-55

Main CPU: Intel 8080 (@ 1.93356 Mhz)
Sound Chips: Discrete circuitry

Screen orientation: Horizontal
Video resolution: 256 x 224 pixels
Screen refresh: 60.00 Hz
Palette colors: 64

Players: 1
Buttons: 4 (LEFT, RIGHT, FIRE LEFT, FIRE RIGHT)

- TRIVIA -

Depthcharge was released during September 1977.

This game is also known as "Sub Hunter" (Taito).

Martin Bedard holds the official record for this game with 4,770 points on November 18, 2007.

- SCORING -

Scoring in this game is pretty simple :
* Submarines will have their score posted on their hull. The submarine scores are from 10 to 90 incrementing in 10's. For example, if you see 40 on the submarine, then that submarine is worth 40 points.
* Generally speaking, the lower in depth the submarine is, the higher the value for the submarine.
* You get 90 seconds on the timer to do as much damage as possible. If you score 500 points or greater, you will get an additional 45 seconds for overtime.
* After you are totally done, you get 30 points for each submarine killed. You do not lose points for losing your ship although it takes about 2 seconds to get a new one.

- TIPS AND TRICKS -

* When you start the game, your destroyer will be in the middle of the water. You will start seeing submarines entering the screen either from the left or right and at varying depths. You have a total of 6 depth charges that can be on the screen at any one time. This means if you fire all 6, then you have to
wait until one detonates on a submarine or the bottom of the sea before you get them back.

* Try to aim your shots to where the submarine will be at. This is, in a sense, ''leading'' the submarine. This is especially important if you are trying to get those submarines at the bottom of the sea.

* Always try to keep at least 2 depth charges in reserve. This is for those submarines that are close to the surface that like to throw mines you cannot avoid.

* Try to keep moving around in your destroyer. If you sit in one place, the submarines can put mines on either side of your ship and prevent you from escaping and adding a destroyer to their kills.

* Don't fire your depth charges too close together on one side. The reason is if a submarine is killed by one of them and the other one is too close, it will also detonate. If you were aiming at another submarine with the second one, then your shot is wasted.

* In addition to the mines themselves being dangerous, your ship can also be sunk by the effects of the mines. Don't sit too close when a mine detonates or you will be at the bottom of the sea.

* If you ''walk'' your shots you have a better chance of getting a good spread and taking out multiple submarines. Kind of like leaving a diagonal string of depth charges the submarines must pass through. Plus, you don't lose your other depth charges to the detonation of ones around them.

* Try to get the 500 required for extra time, it isn't too hard if you play smartly.

- PORTS -

* COMPUTERS:
Noval 760 (1977)
Commodore C64 (1983)
Apple II

- CONTRIBUTE -

Edit this entry: https://www.arcade-history.com/?&page=detail&id=622&o=2

High scores

MAMESCORE records : 02/04/2017 13:01

sawys___________________________3.200
jgabmurer_______________________1.730