Subscribe to download
ORBIS INSULARUM: Southeast Asia Expansion

WARNING:
Disable your automatic updates, if you decide a playthru, the mod right now (May 2025) gets regular updates, almost daily! Check the changenotes!


Orbis Insularum is a historically grounded rework of Southeast Asia in Europa Universalis IV. This mod rebuilds the region from the ground up—revamping tags, rebalancing gameplay systems, and introducing rich new mechanics, all with a deep respect for cultural and historical authenticity.


Graphic mod used in pictures:
Steam Workshop Link

• Every tag has handwritten National Ideas (Maritime SEA and Cham area; old and new tags)
  
• Custom or reconstructed flags for every tag
  
• New cultures introduced; Animism is now syncretic
  
• Localized rulers and name pools for every nation (Partial in v1.3 — 1444 ruler names are currently under review)

• Trade Nodes: repositioned and restructured
  
• Trade Goods: redistributed using academic and historical data
  
• Development: reassigned using Copernican models and vanilla estimates

• Based on 5–30+ sources per tag
  
• Includes academic articles (DOIs), manuscripts, folklore, in-person conversations, forum discussions, and more
  
• Thousands of references parsed in v1.3 alone — powered by coffee and music

• New Mercenary Companies and Naval Doctrines
  
• New Theme Song
  
• New Starting Bookmark and tag recommendations
  
• New Monuments across the Philippines and Indonesia
  
• Highlighted Bookmark showcasing SEA nations
  
• Custom Religious Interaction:
  - If you're a SEA culture with a Sunni ally (150+ opinion), you can make a decision to convert your ruler to Sunni (proof of concept)
  
• Experimental Ming merchant interactions for Samtoy (more planned)

• 🗺️ Vanilla Map Overhaul:
  - New provinces
  - Adjusted borders
  - Possible straits
  - Historically accurate naming
  
• 🏴 New Tags: more nations and formables planned
  
• 🌐 New Relationship Types:
  - Custom dependency system between Ming and Majapahit
  
• ⚖️ System Improvements:
  - Diplomacy and religious mechanics reworked beyond vanilla limits
  
• New flavor events and decisions for major and minor tags (but also generic,- aka climate,- province,- colonial.)
  
• Mission Trees currently in development
  
• 🧠 Prewritten content: much of this is already scripted and undergoing integration

This is a labor of love built from years of passion, research, reading, travel, and meeting new friends—you know the deal. Your feedback helps us improve and grow with each update!

💬 Join our Discord community[discord.gg] — share ideas, report bugs, or just hang out with fellow modders and history fans. Many friendships have been forged here thanks to shared interests and a chill vibe.

If you enjoy the mod, don’t forget to 👍 rate and ⭐ favorite it.
Thank you for supporting Orbis Insularum!



We're actively looking for creative and passionate contributors to help take Orbis Insularum even further. Whether you're a seasoned modder or new to the scene, your help is appreciated! Or just suggest is fine.

• 🧭 Mission Tree Designers – Craft detailed and historical mission trees for SEA nations.
  
• 📜 Event Writers – Add immersive and dynamic regional events.
  
• 🗺️ Map Editors – Assist with adding/changing provinces and borders.
  
• 🎨 GFX & Flag Artists – Help design or improve visual assets and flags.
  
• 🧠 General Feedback – Share historical corrections, balance suggestions, and creative ideas.

(Localization for: French, Spanish, Russian, German, Portuguese and Chinese is being looked into)

Come build Southeast Asia’s story with us!

Keywords: Southeast Asia, Overhaul, Reworked, Expansion, FREE LC, DLC, Leviathian, Indonesia, Malaya, Malacca, Molucca, Ternate, Tidore, Majapahit, Philippinae, Cham, Brunei, Maritime nations, Malay Archipelago, Syncretic religion, Animism, Historical, Trade, Island nations, Srivijaya, Nusantara, Maritime, Colonial interactions, Indigenous cultures, Suvarnabhumi, Leviathian69

Credits in the modfile. If you need an external download, let me know. Sadly PDX doesn't give me permission to reupdate on their modpage.