Seraphim icon land3 directfire Seraphim T3 Siege Tank: Othuum[e]
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Amphibious siege tank that is armed with a slow-firing Thau cannon. Also armed with bolters and a single torpedo launcher.
Build Costs Energy icon -9600
Mass icon -840
Time icon 3600
Max Health Health icon 6700
Speed 2.5 (Amphibious)
Veterancy Seraphim veteran icon Kills icon 9 ( Health icon +3/s)
Intel (Radius) Vision: 22
Water Vision: 25
Direct Fire - Projectile
DPS 100
Projectile  Damage
Reload time 4 seconds
Range 25
Anti Navy - Torpedo
Torpedo  Damage
Salvo Size
Reload time
2 Torpedos (in 0.7 s)
4 seconds
Range 32
Direct Fire - Projectile
DPS 150
Projectile  Damage
Rate of Fire
2 Projectiles/s
Range 25

The Seraphim T3 Siege Tank, nicknamed the Othuum, is a Seraphim unit. It is a direct fire unit.

The Othuum is a heavy assault unit, falling somewhere between the armored assault bots (the UEF Percival and Cybran Brick) and the siege assault bots (the Titan and Loyalist). It is amphibious so it has the ability to travel on the sea floor. It is equipped with Uall Cavitation Torpedo Launcher when it is under water, but like most secondary torpedo systems, this is almost completely ineffective. While on the surface, the Othuum uses its Thau Cannon and dual Aire-au Bolters, which give it an impressive 400 DPS against ground units. It is a powerful unit useful for linebreaking, especially when accompanied by Athanah T3 mobile shield generators, and makes an excellent companion unit for the Ythotha. It is, however, expensive and vulnerable to torpedo attack while under water.

The Othuum is probably the most cost-effective T3 direct-fire land unit in the game, making it godlike for heavy assaults. Costing about as much as two Titans or Loyalists, one of these can face two Titans or two Loyalists at the same time and expect to win the battle. The Othuum can also destroy a Harbinger Mark IV in a one-on-one fight, for the same price, but only if the Othuum is facing the enemy directly so that both Aire-au Bolters, the real power of the unit, can engage. Finally, three can expect to win a battle against any two armored assault bots, once again, for the same price. However, the Othuum is very slow, slower than the Harbinger Mark IV, so most units can flee safely, and the other assault unit of the same class can kite it with its slight range advantage and significant speed advantage (0.5). If you are planning on facing units with shields, such as Titans or Harbinger Mark IVs, it may be a good idea to pair the Othuum with some kind of fast or long-range unit, to finish off any shielded unit that can flee quickly and safely. These units are quite possibly the best non experimental units in the game for facing a land experimental of any kind. 8-10 of them will kill a fat boy with ease and 14-18 of these will cause serious problems for any land army of any size.

Choosing between the Othuum and the IlshavohEdit

It is important to remember that the Ilshavoh is unique in that it remains important even when a Seraphim player reaches Tech 3. There are many times when Ilshavohs will accomplish tasks as efficiently as using Othuums, and at a cheaper price, and vice-versa. There are also times you need to use both. If you want the most "bang for your buck," think about these things when making a choice:

  • What does your economy look like? Three Ilshavohs can, except for DPS, replace one siege costs a little bit more mass, but saves you almost twice the energy
  • Ilshavohs are faster than siege tanks, and are more maneuverable--and they have a longer range, even if only slightly (this makes the Ilshavoh perfect for shooting Loyalists out of range). They are therefore better for chasing down fast units, even though the 2.9 speed proves to be a hindrance.
  • Going back to the argument of three Ilshavohs replacing one siege tank, you save a lot of energy, but these Ilshavohs have almost 100 less DPS. In addition, if you lose even one of those three Ilshavohs, the DPS decreases by 105. This means that if you have three Ilshavohs facing two Titans, for example, you win the battle, but with less fire power to continue the raid than you started out with. An Othuum will also win the battle against two Titans, but will still have all 400 DPS to continue fighting with (and, most likely, more health than the combined health of your remaining Ilshavohs)
  • If you have to cross water to attack a position, the Othuum is the obvious choice, especially since the T3 mobile shield generator can also cross water.
  • If you are attacking an enemy ACU the choice is also obvious, the llshavoh, as more overcharges will be required, provided you keep the llshavoh slightly spread out to avoid splash damage.


Perhaps the most effective way to counter a wave of Othuum is with sniper bots, as they are able to both outrun and outrange the Othuum with ease.

Physical descriptionEdit

The Othuum looks similar to the Thaam, but larger. It has double treads in its middle, and smaller ones to the side and at the back. The main treads are bracketed by a metal cover connecting to the top cover that has a rotating Thau cannon on top. On the side covers of the smaller treads, there are two Bolters that deal most of the damage, since the Thau fires so slowly, it has less DPS than even one of the bolters. Against heavy enemy units, it is imperative that both bolters stay firing, or the Othuum will be destroyed by, say, the Harbinger Mark IV.

T3 siege tenk

Seraphim T3 Amphibious Siege Tank on standby

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