Blood Ocean
A mod inspired by the film "Iron Lung" by Markiplier, based on the game of the same name by David Szymanski, which adds rare blood ocean type planets to Stellaris. The planet type is unique and does not replace any other planet class.
For version 4.2.4 "Corvus".
Can be used alongside Planetary Diversity. Not achievement compatible.
Please do not redistribute my mod or any parts of it without my permission.
Please let me know if you encounter any issues other than the ones mentioned or if you have any suggestions for features/improvements. If you have any corrections involving translations please let me know as well.
Version 1.36 – 17/02/2026
– Blood Oceans are now habitable!
– They appear slightly rarer than regular habitable planet classes, with 0.35 spawn odds as opposed to 0.4.
– Blood Oceans are now affected by the Habitable Worlds slider bar in the Galaxy Settings.
– They can also appear with a pre-FTL society.
– Blood Oceans are intended to be research-oriented worlds with limited habitability. Therefore, they do not provide much in the way of basic resources but they will provide added research.
– After encountering your first Blood Ocean, you will unlock two technologies that each grant +20% habitability to Blood Ocean worlds.
– Blood Oceans may have some agriculture and generator districts, but they will never have mining districts. There’s a reason they survived the rapture, after all.
– Other mods may still be able to change this.
– The number of available districts is intended to be limited.
– Living Metal and research orbital deposits have been replaced with unique planetary features for Blood Oceans which give these resources instead.
– These planetary features provide science output for all three types as well as Living Metal, agriculture, and generator districts.
– Some planetary features are much rarer than others.
– Added an event popup when you first survey a Blood Ocean planet, followed by toolbar popups for every Blood ocean that follows.
– Added localisations for all languages.
– I will keep improving the bonuses that Blood Oceans provide and I welcome any feedback, particularly involving balance, localisation, and of course bugs. At some point I would like to add a unique major bonus that these worlds provide, possibly involving an origin, that would make them something that the player would specifically aim towards.
Acknowledgements – Planetary Feature spoilers!
Saltbearer on Freesound for the Blood Ocean selection sound effect.
@deadlymelodic on Instagram for the original blood eel image, used as the Blood Eel icon. @dav_billings on Unsplash for the original ocean image used as the icon for the Blood Ocean Metal and Blood Food Synthesis planetary features.
@danesduet on Unsplash for the original image used as the icon for the Deep Caves icon.
Richard Clay Goodloe on Pexels for the original image used for the Skeletal Remains icon.
Marcoriveroph on iStock for the original image used in the Ruined Lung icon.
@sschusterphotoart on Unsplash for the original image used in the Mysterious Ruins icon.
NOAA for the original hydrothermal vent image used for the Gaseous Vents icon.
