The 4.3 'Cetus' Open Beta is introducing a fundamental shift: instead of a Pop Group being locked into a single ethic, they will now support mixed ethics stored via percentages. This is a "risky" and save-breaking mechanical change that aims to make internal politics feel more fluid and realistic. If you have been frustrated by the binary nature of faction support, this update is designed specifically for you.
Because this change rewrites how the game tracks your citizens' beliefs, it will break any existing save files. The developers are targeting a rollout for this specific experimental branch next Tuesday. If the community feedback is positive and the systems prove stable, the 4.3 Cetus update is expected to hit the live branch in mid-March.
What else is changing in the Cetus Beta?
Beyond the ethics overhaul, the latest patch notes reveal a significant pass on traditions and balance. Several tradition trees are being renamed to better reflect their utility; for instance, Mercantile is becoming Commerce, and Unyielding is being rebranded as Fortification. These aren't just cosmetic changes, as they come alongside a suite of balance adjustments to keep the mid-game competitive.
For the modding community, this is a massive transition. The long-standing pop_has_ethic trigger is being removed in favor of pop_ethic_percentage. This reflects the new logic where a group of pops can be 30% Xenophobe and 70% Materialist simultaneously, rather than a hard flip from one to the other. It’s a sophisticated change that should lead to much more interesting internal revolts and diplomatic shifts as your empire grows.
Soren