SWIV
Commodore 64 · 1991
About this game
SWIV 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.
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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.
About Commodore 64
Released in 1982, the Commodore 64 is the best-selling home computer model of all time, with an enormous software library spanning games, productivity tools, and everything in between. C64 game collecting centers on cassette tapes and floppy disks in their original packaging — physical media that's inherently fragile, so complete, working copies from the era are increasingly prized by retro computing collectors.
Gamevaro tracks SWIV for Commodore 64 with separate market values for loose, complete-in-box (CIB) and factory-sealed copies, sourced from real eBay sales. Prices also vary by region — PAL, NTSC-U and NTSC-J releases of the same game often sell for different amounts due to print run sizes and regional collector demand.
Adding SWIV to a Gamevaro collection takes seconds — search by title or scan the box barcode, and the app fills in cover art, release details and current pricing automatically. This C64 release dates back to 1991.
Market values by condition
PAL
Recent sales
| Date | Type | Region | Price |
|---|---|---|---|
| 2026-07-17 | Loose / Item only | PAL | €33.99 |
Rarity & condition
Only a handful of market sales have been tracked for SWIV, suggesting it doesn't trade hands very often — a sign of relative scarcity compared to more common Commodore 64 titles.
Complete-in-box (CIB) copies typically command a premium over loose cartridges/discs because the original box and manual are more fragile and get discarded or damaged over time — fewer complete sets survive.
Frequently asked questions
How much is SWIV worth?
SWIV for Commodore 64 is currently worth €33.99 loose. Prices are based on real sales and update regularly on Gamevaro.
Is SWIV rare?
SWIV has only a handful of tracked market sales, suggesting relative scarcity compared to more common Commodore 64 titles.
What's the difference between loose, CIB and sealed for SWIV?
Loose means cartridge or disc only, CIB (complete in box) includes the original box and manual, and sealed means factory-sealed and never opened. These are tracked as separate market values because the price gap between them can be significant, especially for older releases.
Ratings & Reviews
Also on other platforms
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