Alien World is a shoot 'em up game with levels that scroll horizontally or vertically and with a rather weird storyline and visuals. The game was released only for the Commodore Amiga, Atari ST and C64 computers. It doesn't offer anything new to the genre but its gameplay is simple and quite straightforward.
STORY / GAMEPLAY During a time of legends the world was doomed into darkness. The wizard of evil rules and imprisons your mind inside the body of a ferocious alien that looks similar to the infamous alien of the Alien blockbuster movie! And that was his first mistake because now you own the soul of a warrior. And so begins your action-packed quest to defeat the wizard and regain your human nature. You set forth to rescue your love interest, a beautiful girl named Merdb, held by Feg inside the Cave Of Dreams. The storyline is quite odd for a pure shoot 'em up game! Collecting pods can enhance your firepower, increase the speed of your alien(!) and activate smart Bombs. What may come up as a surprise though, is how gravity negatively affects your alien and forces you towards the hot lava (that means disaster). Overall, Alien World has all the ingredients of a common shooter game.
GRAPHICS / SOUND The Amiga version features a few more colors (up to 32) than the ST (up to 26), but in general the graphics are pretty much the same on both platforms. Note that the Amiga version has different background graphics than the ST (but still poor in detail), while the foreground details are exactly the same. Although the scrolling is slow, the game remains fun to play. The soundtrack is far from a thrilling musical experience and not the sort of music you'd leave playing aloud while doing something else. During gameplay, the Amiga version keeps the the intro tune playing (but there are no sound effects) in contrast to the Atari ST version that has sound effects during gameplay but no music.
CPU: Motorola MC68000 7.16 MHz MEMORY: 512KB of Chip RAM (OCS chipset - A500), 512 KB of Slow RAM or Trapdoor RAM can be added via the trapdoor expansion, up to 8 MB of Fast RAM or a Hard drive can be added via the side expansion slot. The ECS chipset (A500+) offered 1MB on board to 2MB (extended) of Chip RAM. GRAPHICS: The OCS chipset (Amiga 500) features planar graphics (codename Denise custom chip), with up to 5 bit-planes (4 in hires), allowing 2, 4, 8, 16 and 32 color screens, from a 12bit RGB palette of 4096 colors. Resolutions varied from 320x256 (PAL, non-interlaced, up to 4096 colors) to 640x512 (interlace, up to 4 colors). Two special graphics modes where also included: Extra Half Bright with 64 colors and HAM with all 4096 colors on-screen. The ECS chipset models (Amiga 500+) offered same features but also extra high resolution screens up to 1280x512 pixels (4 colors at once). SOUND: (Paula) 4 hardware-mixed channels of 8-bit sound at up to 28 kHz. The hardware channels had independent volumes (65 levels) and sampling rates, and mixed down to two fully left and fully right stereo outputs