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PrimeSonic _ Yamitatsu

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About this mod

Take your Seamoth and Prawn Suit to the next level as each new depth module makes them progressively tougher and faster.

Permissions and credits
It is highly recommend to pick up the Slot Extender mod to use along side this one.
Upgraded Vehicles greatly increases the benefits you gain from adding a new depth module to your small vehicles.

New Benefits to Upgrading your Depth Modules
When you install a new depth modules in your Seamoth or Prawn Suit, it will gain additional bonuses in the form of:
  • More vehicle armor (reduced damage from impacts and creature attacks)
  • Additional movement speed (go faster at no extra cost)
  • Better engine efficiency (power cells last longer)
All this for free just from the depth upgrade module.

New Vehicle Upgrade Module: Speed Boost Module
  • Kicks your small vehicle into high gear, adding extra speed to get you there and back faster.
  • The added speed does come at the cost of reduced engine efficiency.
  • The bonus speed added by the depth modules though comes free ;)
  • Craft it at your Vehicle Upgrade Console.

New Vehicle Upgrade Modules: Hull Reinforcement Module Mk2, Mk3, & Mk4
  • Rather than waste precious upgrade slots of multiple armor modules, why not upgrade them instead?
  • Now you can get the benefits of 2, 3, or even 4 armor modules in a single slot
  • So that you don't feel obligated to craft multiple of these, hull reinforcement modules no longer stack with each other
  • 3 new tiers of hull reinforcement modules are available to craft in the Modification Station

Altered Items
  • All Hull Reinforcement Modules now grant your vehicle some damage reduction against all types of damage, even creature attacks.
  • Finally, it's not totally useless!

Cross-Mod Bonus
  • If you're also running More Seamoth Depth mod, the Seamoth Mk4 and Mk5 depth modules will grant increasing bonuses over the Mk3.

User Configurable (Introduced in version 3.1)
  • The extra bonus speed provided by depth modules is now configurable in the Mod Options menu in-game.
  • You can leave the bonus speeds as is, slow them down a little, go faster, or even outright disable the extra speed entirely.
  • Bonus speed settings to the Seamoth and Prawn Suit can be configured independently.
  • Selections are saved to your UpgradedVehicles mod folder.
  • ATTENTION: Changes made through the options menu won't take effect until you next re-equip any depth modules to refresh the stats.


You must have QModManager and SMLHelper V2 installed.
Simply extract the UpgradedVehicles archive into your QMods folder.

Source code:
Source code now contains pre-calculated values for the common upgrades handled by this mod: here

Debug Spawn ItemsID