Double the Trouble: Ocean Keeper Co-op Joins Tower Defense Fest (-40%)
RetroStyle Games
Hey Keepers!
Ocean Keeper: Co-op is part of the Steam Tower Defense Fest , and to celebrate, we’re diving deep with a 40% discount !
From March 9 to March 16 , the depths are more dangerous than ever, and your mech needs defending. If you enjoy holding the line against endless waves of alien sea creatures, this is your moment.
https://store.steampowered.com/app/3937360/Ocean_Keeper_Coop/ In Ocean Keeper: Co-op , you and your crew defend a powerful mech-spider - your base deep beneath the ocean surface. Mine resources, upgrade your weapons, and survive brutal waves of enemies. Every run is different, every defense is hard, and every victory is earned together.
What awaits you:
4-player online co-op Procedural runs with unique upgrades Intense wave defense combat Resource mining between attacks Bosses lurking in the dark
During the Tower Defense Fest , it’s the perfect time to dive in with your friends - especially with Ocean Keeper: Co-op now 40% off .
So grab your squad, power up the mech, and prepare to defend the ocean floor.
~~~ The wave is coming. Are you ready to hold the line?
Also, don't forget to wishlist our new project!
https://store.steampowered.com/app/4317790/Last_Pirates_Die_Together/ Thank you, and have a great time playing! — The Ocean Keeper Team
This announcement was originally published by RetroStyle Games on Steam on Mar 9, 2026.
Open the original on Steam