Big Rocks in Space

icon A clone of the classic arcade game Asteroids created by Atari, Inc. in 1979, developed with DIV Games Studio in 2001, first ported in 2016, and now re-adapted for Dreamcast.


Big Rocks screen 1

The objective of the game is to destroy all the asteroids that appear from all angles of the screen, shooting a large asteroid will cause it to break into smaller asteroid fragments, making them more difficult to hit, points are scored for everything destroyed. Unlike the original endless Asteroids, there are only seven levels within the game, it also features a unique money system which can be used to repair and upgrade you ship when each level is completed. Asteroids randomly leave money when destroyed, the Alien bugs are harmless and drop small amounts of money as they travel through space, so try not to hit them, and collecting multi-colored orbs which spell out BONUS will earn a large cash prize. Use the grabgun to retrieve the money, which can also be upgraded between levels, making it bigger and easier to collect the cash bonuses.

Big Rocks in Space was developed in 2001 by Ryan Johnston of Blackmoth Entertainment, the source was based on DIV Games Studio tutorial 1 by Antonio Marchal, and the game was first ported to Dreamcast by Brian Deuel (aka Atari) of Fuseki Games.

Big Rocks screen 2

This release comprises of Big Rocks in Space along with DCEvolution's version of Chui's Fenix SDL Loader (FSL) from November 2004, edited to exclude the Fenix splash screen and jingle, so the game loads directly.

Big Rocks in Space has been 'remixed' and compiled specifically for the Dreamcast. To save resources and reduce frame rate dropping in latter levels, the following changes have been made: The intro logo graphics set has been removed, the Blackmoth Entertainment logo text is now displayed as a backdrop on the menu screen. The animated dollar sign, BONUS discs, Mines, and Alien Spider bonuses are now static images, and the number of generated asteroids has been evened out through the levels. Additionally, the following changes have been made: The title logo has been reduced in size, the plot screen has been removed, so you can now start the game directly from the menu, and the plot text has been added to the game instructions. The menu, along with all screens within the game, have been reconfigured to enable the re-positioning and even spacing of all text and graphics. The WAV sound effects have been replaced and balanced for volume. Module music has also been added to the menu, with the additional option to turn music off.

Due to the alterations made to the game, downloads for the original (which includes the original source) and Brian Deuel's port (which also includes the source and DCEvo's version of the FSL) have been made available.

Big Rocks screen 3

Controls (Menu)

  • D-Pad UP/DOWN - Options
  • A - Select Option

Controls (Game)

  • D-Pad LEFT/RIGHT - Rotate Ship
  • D-Pad UP - Thrust
  • A - Fire Weapon
  • B - Fire Grabber Gun
Big Rocks screen 4


  • Big Rocks in Space: Ryan Johnston
  • Ryan Johnston: Blackmoth Entertainment
  • Big Rocks in Space Dreamcast Port: Brian Deuel
  • Fenix Dreamcast Port and FSL: Chui
  • Big Rocks in Space re-adapted for Dreamcast and presented by DCEvolution

Site Links

Big Rocks in Space Thumbnail 1
CD Image Download (1.0 MB)
Big Rocks in Space Thumbnail 2
Download (995 KB) Plainfiles
Big Rocks in Space Thumbnail 3
Download (346 KB) Source
Big Rocks in Space Thumbnail 4
Download (872 KB) Brian Deuel Port Plainfiles
Big Rocks in Space Thumbnail 5
Download (358 KB) Original Version Source