Top similar games like Trepidation:

Subsiege is an intense real-time tactic game with focus on massive 12 player battles. In a grasping deep sea world, you command a hand-picked squad of hero-like units to contend merciless sea monsters and fierce competitors while your oxygen runs out with every breath. Can you stand the pressure?

Explore the ice-encrusted ocean of Jupiter's moon Europa.

South Scrimshaw is the story of a newborn whale in a vast alien ocean. It is a richly illustrated experimental visual novel, written in the style of a nature documentary.

Abyss Crew is a multiplayer coop game aboard a steampunk submarine. Each player is a member of the submarine crew - pilot, gunner, sonar, or engineer. Explore the abyss to find precious mineral - but beware, as sprawling menaces lurk in the darkness...

Discover an immersive ocean Eco-Sim where you can be almost any animal under the sea! From a tiny seahorse to a massive blue whale, experience the endless circle of life in a massive world of reefs, shipwrecks, and hidden wonders.

This open-world survival craft game lets you, having lost your memory, embark on a journey to find your "true self." Explore the islands and seas where you've been stranded to craft rafts and weapons. Protect yourself from numerous threats as you strive to regain your lost memories.

A fun 2-player online co-op pirate game for having a good time with your best buddy. Stranded on a cannibal island, your only chance of survival is to make the cannibals like veggie food. Go on quests, fly with birds, paddle in a barrel, and use your bubble shooter to fight sharks.

Embark on a relaxing journey in an underwater realm. Glide through captivating environments, embracing the tranquility of exploration and survival found in these Harmonic Depths.

Play as an interstellar custodian sent to clean up a polluted ocean planet. Pick up trash, explore the vibrant waters, and take care of axolotl-like alien creatures!

Se aventure nas profundezas do mar com um Micro-ondas humanoide e um vírus falante. Nesta aventura, você deve descobrir como voltar para a casa do seu criador, mas para isso terá que enfrentar muitos desafios, de peixes metralhadora a polvos sniper.

1-4 player PvE submarine roguelite. A new super mineral has been found deep underwater! Team up with Marine Biologists in tech-filled submarines, stealthily explore vast procedurally-generated oceans, defend endangered species, and sustainably extract the minerals for upgrades to dive deeper..

『Whale Fall』is a single-player game in which you journey through a magnificent ocean world while controlling a variety of sea creatures.

Dive into DrainSim and seize control of the floods! Clear the city's submerged streets, with a huge range of different tools from rakes to submersible pumps. Embrace the satisfaction of restoring the water flow. Become the city's hero, one drain at a time.

DIVE. DISCOVER. DIE. Crew a submarine with friends in We Need To Go Deeper - a 2-4-player cooperative submarine roguelike set in a Verne-inspired undersea universe.

Assume the role of marine life in this casual turn-based strategy game and overcome the ultimate danger, pollution and climate change. Will you evolve and adapt to the new harsh conditions or will your ecosystem wither and become extinct?

Subside is an immersive aquatic VR experience with multiple areas to explore and lifelike aquatic creatures to interact with. Crafted with unparalleled realism, it aims to replicate the nuances of real-life swimming and diving in shallow waters

Dive into a thrilling multiplayer survival adventure in RTE Worlds. With a procedurally generated world, random dungeons, and limitless replayability. Explore by land, sea, air, and immerse yourself in a captivating story brimming with quests and unforgettable NPCs. Your epic journey begins here!

Dive into an explorable water world where Elders are mysteriously being trapped in crystal prisons. The freedom of the elders depends on a single naive little spirit to explore and find a way to release them.

"Escape Island: An exciting survival adventure! Your mission: Escape from a deserted island full of dangers. Explore, hunt and collect resources to survive. But beware of lurking threats! Use your intelligence and skills to overcome obstacles and escape!"

A journey of the last ocean cleaner submarine that is tasked to restore the ecosystem of a dying earth. "Plasticalypse: TrashSub Adventures“

Create your very own aquariums on your PC with Behind Glass. With our realistic 3D aquarium engine, you can enjoy the details of lifelike fish, plants, decorations, algae, and more. Add realistic water and lighting effects and your monitor becomes a fish tank. Virtual aquascaping is so easy!

First-Person underwater fishing game that takes you from colorful coral reefs to the depths of the open sea to discover all the species of fish. Become a seasoned harpoon hunter by upgrading your equipment to find the rarest fish out there.

Submerge yourself in one of the most immersive diving simulators to date. Gather your gear, choose your diving spot and discover what lies beneath the surface as you venture deep into the unknown.

Pilot a remotely operated submarine and explore the oceans! Defy the darkness and crushing pressure of the deeps as you chart unknown regions and study new species of ocean life.

Save the coral reef city in this cute tiny adventure game! Meet the colourful residents of this underwater city, explore the streets, befriend different species of fish and help them restore the corals to their former glory!

Begin with an empty reef, as time goes on; hire cleaners, grow coral & create the best day spa in all the 7 seas!