Worms Forts: Under Siege
Xbox · 2004
About this game
Worms Forts: Under Siege is a turn-based strategy game where 2 – 4 people battle it out with a team of 4 worms with the help of weapons and forts.
Each player takes timed turns bombing, shooting, causing natural and unnatural disasters, punching and blowing up the opponent’s worms.
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Each worm has a set amount of health and once that health is depleted or the worm drowns that worm is dead.
New to the series is the ability to construct buildings to aid in the fight.
Build hospitals to resurrect dead worms, science labs to increase your firepower, strongholds to base your operations in and protect your worms, towers, keeps, castles and citadels to deploy weapons from their tops and weapon factories to produce multiple weapons around them at the start of each turn you take.
Along with these typical buildings you can create Wonders which your opponent has two turns to knock down and if they don’t succeed you win.
If they in turn build their own you must destroy it to win the game.
Along with the typical Worms -style weapons like the mini gun, bazooka, rocket launcher, earthquake and homing pigeon (a homing missile in the form of a pigeon), you will also have weapons to destroy buildings like the trebuchet, fridge launcher, nuclear strike and the Trojan Donkey (which you get to place where you like and it remains there until it explodes, how long it takes to explode is not known).
Some weapons like the Old Women and Rhino can be steered to your desired location upon which they explode on contact, or they can be exploded early by pressing a button.
Throughout the game different crates will fall from the sky or teleport onto the playing field.
There are four different types of crates: weapon crates (more powerful weapons); health crates (increase the health of a wounded or sick worm); utility crates, which carry instant utilities such as spy (see contents of all crates on the field), double time (doubling the time for your turn) and double damage (for one turn inflict double
About Xbox
Microsoft's original Xbox (2001) marked the company's first console and stood out for its built-in hard drive and Xbox Live service, which laid the groundwork for modern online console gaming. Original Xbox discs are prone to wear, so complete, undamaged copies — especially of the system's more niche or Japan-only titles — are less common than the console's overall sales figures might suggest.
Gamevaro tracks Worms Forts: Under Siege for Xbox 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 Worms Forts: Under Siege 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 XBOX release dates back to 2004.
Price history
Market values by condition
PAL
NTSC-U
Recent sales
| Date | Type | Region | Price |
|---|---|---|---|
| 2026-07-13 | Item only | NTSC-U | €10.49 |
| 2026-07-13 | Item only | PAL | €12.46 |
| 2026-07-12 | Complete in Box | PAL | €6.45 |
| 2026-07-12 | Complete in Box | NTSC-U | €6.59 |
| 2026-07-12 | New (sealed) | NTSC-U | €32.81 |
| 2026-07-12 | Manual Only | NTSC-U | €1.74 |
| 2026-07-12 | Item only | PAL | €6.26 |
| 2026-07-12 | New (sealed) | PAL | €15.75 |
| 2026-07-12 | Graded New | NTSC-U | €36.09 |
| 2026-07-12 | Box Only | PAL | €2.58 |
| 2026-07-12 | Box Only | NTSC-U | €3.85 |
| 2026-07-12 | Manual Only | PAL | €1.61 |
| 2026-07-12 | Item only | NTSC-U | €6.50 |
| 2026-07-12 | Graded New | PAL | €17.32 |
| 2026-07-10 | New (sealed) | NTSC-U | €32.79 |
| 2026-07-10 | Complete in Box | PAL | €6.45 |
| 2026-07-10 | Item only | PAL | €6.25 |
| 2026-07-10 | Manual Only | NTSC-U | €1.74 |
| 2026-07-10 | Box Only | PAL | €2.58 |
| 2026-07-10 | Complete in Box | NTSC-U | €6.59 |
| 2026-07-10 | Graded New | NTSC-U | €36.07 |
| 2026-07-10 | Box Only | NTSC-U | €3.85 |
| 2026-07-10 | New (sealed) | PAL | €15.74 |
| 2026-07-10 | Item only | NTSC-U | €6.50 |
| 2026-07-10 | Graded New | PAL | €17.32 |
| 2026-07-10 | Manual Only | PAL | €1.61 |
| 2026-06-18 | New (sealed) | PAL | €15.53 |
| 2026-06-18 | Box Only | PAL | €2.86 |
| 2026-06-18 | New (sealed) | NTSC-U | €32.42 |
| 2026-06-18 | Complete in Box | PAL | €6.36 |
Market insights
Rarity & condition
Worms Forts: Under Siege has a steady sales history on the tracked marketplaces, meaning enough copies circulate to establish a reliable market price.
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 Worms Forts: Under Siege worth?
Worms Forts: Under Siege for Xbox is currently worth €12.46 loose, €6.45 complete in box, and €15.75 factory sealed. Prices are based on real sales and update regularly on Gamevaro.
Is Worms Forts: Under Siege rare?
Worms Forts: Under Siege has a steady sales history on the tracked marketplaces, meaning it trades hands regularly and isn't considered particularly rare.
What's the difference between loose, CIB and sealed for Worms Forts: Under Siege?
Loose means cartridge or disc only, CIB (complete in box) includes the original box and manual, and sealed means factory-sealed and never opened. For Worms Forts: Under Siege, loose is €12.46 and CIB is €6.45 — CIB commands a premium because original boxes and manuals are fragile and often don't survive.
Is Worms Forts: Under Siege worth more in PAL or NTSC?
The PAL version of Worms Forts: Under Siege is currently worth €12.46 loose, versus €10.49 for NTSC-U. Regional price differences usually come down to print run size and regional collector demand.
Ratings & Reviews
Also on other platforms
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