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S.W.I.V. is a vertical scrolling shooter and an unofficial follow-up to Sales Curve's conversion of the side scroller Tecmo arcade game Silkworm.

One player controls a helicopter and the other a jeep, with the jeep transforming into a boat when the vehicles pass over water. As well as a host of blaster fodder the game also includes a mid-level enemy inspired by the "Goose" enemy from the earlier title Silkworm. Pieces of this enemy would fly onto the screen and assemble into one vehicle before commencing to fire at the players' vehicles. When destroyed the "goose" would drop power-ups.


S.W.I.V. Commodore 64 Controlling the heli...
S.W.I.V. Commodore 64 Title screen
S.W.I.V. Commodore 64 Controlling the jeep...
S.W.I.V. Commodore 64 Heli parameters

Promo Images

There are no promo images for this game

Alternate Titles

  • "SWIV" -- Alternate spelling
  • "Special Weapons Interdictions Vehicles" -- Unofficial full title
  • "Silkworm IV" -- Informal title
  • "SilkWorm In Vertical" -- Alternative Read-out

Part of the Following Groups

User Reviews

There are no reviews for the Commodore 64 release of this game. You can use the links below to write your own review or read reviews for the other platforms of this game.

Critic Reviews

Computer and Video Games (CVG) Apr, 1991 90 out of 100 90
Commodore Format Mar, 1991 88 out of 100 88
64'er Jun, 1991 8 out of 10 80
Retro Archives Jul 12, 2020 14.75 out of 20 74


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  • Amiga Power
    • May 1991 (Issue #00) - #27 in the "All Time Top 100 Amiga Games"
  • Commodore Format
    • July 1993 (Issue 34) - Modern Classics: Shoot-'em-ups

Martin Smith (78) added S.W.I.V. (Commodore 64) on Oct 29, 2003
Other platforms contributed by robMSX (2214), Martin Smith (78), Kabushi (257500), Martin Smith (76887) and Dan Marchant (19)