Underwater-themed Doom mods?

[Artman2004]

Underwater settings seem to be highly uncommon, so I want to know if there are any.

[DynamiteKaitorn]

Not fully underwater but a couple maps in my most recent TMoD DO take place in the ocean of Floodrene!

 

[Otco]

Swim with the Whales is a tough but good underwater wad.

 

Edited November 27, 2021 by OtcoGaming

[Doomlover77]

I know of these wads where you go underwater. 
 

There’s Marina.wad for Doom2 by Brian Hess. 

 

Super Sonic Doom - the Nautical mines zone where you are underwater. You fight the end of zone boss underwater on act 2. 

 

 

 

007ltsd.wad For ultimate Doom - on a few of the levels you do have to go underwater to get where you need to go. 

 

The above level is e4m4 - Phobos Island. In this level you go underwater to reach the boat to escape from the island before it blows up. 

 

above level is e4m5 - sludge refinery. You go down some pipes to escape from the refinery before it explodes, after finding the explosives and swimming underwater back to the refinery. 

Edited November 27, 2021 by Doomlover77
Underwater mods.

[Lorenz0]

Joy of Mapping 5 had an entire underwater episode from what I recall

[Stupid Bunny]

Arguably, Heretic E3

[Shawny]

I made a map that is located on a rocky island that is a techbase that have some underwater sections.
Though it is the first released map of mine, so it has issues and the theme can be utilized much better.

 

[Roofi]

I will do some self-promotion too. Check the final map of Deadly Standards 2, you have an entire section which takes place in underwater.

 

Edited December 2, 2021 by Roofi

[Walter confetti]

This all-time 1994 classic: https://www.doomworld.com/idgames/levels/doom/s-u/undersea

[Havoc Crow]

Doomer Boards Project 36: Aquatic Wonder is set underwater, even to the point of implementing bubble special effects. 

https://www.doomworld.com/idgames/levels/doom2/Ports/d-f/dbp36

[Sonikkumania]

I once made a map that was like a submarine bunker and it featured a short underwater section. The map was shitty but just wanted you to know, lol.

[Majin]

pirate doom has a few underwater levels

[vdgg]

Object 34: Sonar :)

[TheMagicMushroomMan]

Golden Souls 2: the underwater pirate ghost ship is incredible.

Edited August 8, 2022 by TheMagicMushroomMan

[enigma101]

MAP05 in Golden Souls is mostly an underwater map

[Nikku4211]

Technically, there's this Spongebob WAD.

[Demion]

This one: Aquatic Wonder by DBP Team. A great wad.

 

Edit: I've just seen someone had already mentioned this one :(

Edited August 8, 2022 by Demion

[Not Jabba]

Under a Freezing Sea has some good underwater segments.