Worms Forts: Under Siege has 10 Deathmatch Challenges, simply called "The Trials" in-game. Unlike the Deathmatch Challenges in Worms 3D, Worms 4: Mayhem and Worms: Ultimate Mayhem, these Challenges are not time-based, which means that they do not require you to finish within a certain amount of time.
Deathmatch Challenge 1
|Here you must destroy all enemies and their forts. Do not allow your team to eradicated from the face of the worms universe.|
This is the first deathmatch. You will receive plenty of weapons and buildings. In this deathmatch, everyone receives an equal amount of 4 worms.
- Enemy Team: Bodyguards
Deathmatch Challenge 2
|It's time for another deathmatch. Don't give in to this improved enemy now!|
The second deathmatch. Like Deathmatch 1, you receive plenty of weapons and buildings. However, there are some unowned buildings in the landscape, which you can claim. Everyone receives an equal amount of 4 worms again.
- Enemy Team: Players
Deathmatch Challenge 3
|The chips are down, don't give in now!|
The third deathmatch has a medieval theme. This time, you will receive a bit less of weapons and buildings. Again, everyone gets an equal amount of 4 worms.
- Enemy Team: Heretics
Deathmatch Challenge 4
|Take out the enemy worms and forts before they get the chance to get you!|
In this deathmatch, you will start with no weapons (excluding your special weapon), but you have twice as much ammo of buildings. This is like Shopper Scheme, you have to collect weapons from Crate. The difficulty of this deathmatch is random, and the enemy team has more worms than you.
- Enemy Team: Gardeners
Deathmatch Challenge 5
|You're due to another assault on the dug-in enemy and their ever-growing forts. Now get out there and raise some hell!|
The enemy in this deatchmatch hass already constructed a massive fort, which means that they have an advantage. But the good news is that you will have plenty of weapons and buildings. You will start with less worms that the opponent.
- Enemy Team: Samurai
Deathmatch Challenge 6
|You're getting quite good at this, aren't you? Well, you know the drill, so show no mercy!|
You get plenty of weapons, buildings and worms. However, in this deathmatch, the enemy has two Strongholds to start with. It is your choice whether you want to destroy both strongholds or kill the enemy worms.
- Enemy Team: Builders
Deathmatch Challenge 7
|Back for more then, eh? Well, get your kit together and take the fight to the enemy!|
In this deathmatch, both you and the enemy have two strongholds to start with. You will have plenty of weapons and buildings again, but you will not receive the same amount of worms, as the enemy will outnumber you. If you have luck and you are fully prepared, you can go there and raise some hell!
- Enemy Team: Scholars
Deathmatch Challenge 8
|Maybe this lot can halt your unstoppable charge! Head an attack on the enemy worms and forts. Good luck!|
Like Deathmatch 2, there are some unowned buildings in the landscape. You will receive plenty of weapons and buildings. The enemy worms only have a Keep built on the side of their Stronghold. You have your choice between destroying the Stronghold or the enemy worms.
- Enemy Team: Sensei
Deathmatch Challenge 9
This is the second last deathmatch. Both teams will receive a plenty of weapons, buildings and an equal amount of worms. Unlike the opponent, your team does not have Citadel. Beware of the fact that the enemy have a great accuracy, so watch your back!
- Enemy Team: Clergy
Deathmatch Challenge 10
|The enemy just don't know when to stop do they? You know the score, you've got the competence to rid of such nastiness. Sort it out, buddy!|
Well, you have passed 9 deathmatches. Now, you are standing across your last obstacle. In this deathmatch, things are going to change a lot. As for one, you have no buildings in your inventory, because you got a fort built already. However, there is one huge disadventage: everything is connected to one Tower! That means you got a weak link to protect. As for weapons, you only have tier 2 weapons and your special weapon. You have a weapon factory in your fort, and the chance for drop of building crates are at 50 %. The enemy has two Strongholds once again, so if you are ready, let the final battle begin!
- Enemy Team: Legion