New victory conditions (research, occupation, flagship and capital victory).

New audio (new music, sounds effects and voice overs).

Around half a dozen new techs for the new factions.

6 new corvette ships (new ship class).

All capital ships improve to 4 levels now.

3 new capital ships, one for each race.

A new huge and powerful ship class called Titan.

6 new factions (morphed from the original three races) split into Loyalists and Rebels.

Among some tweaks to the pirate’s system, updated tutorials and other minor improvements, the most notorious Rebellion’s additions I could take note of are: What does the expansion has to offer? No campaign yet unfortunately. Since this is an expansion it’s imperative to go through what’s new and how does that impact the game’s experience. What is new and how valuable these new additions are. The remainder of the review will focus on the Rebellion expansion. You can check the SoaSE: Trinity review for details on how Sins looked like before Rebellion. Later on Stardock re-released both expansions and the original game in a single bundle called Sins of a Solar Empire: Trinity. They brought a significant amount of new options to the gameplay, and they were cheap. These were two well received (micro)expansions. They also included the “relations” panel in this expansion, an important feature that lets you know how good your relations with the other empires are, and why. Diplomacy brought a new tech tree specifically designed from scratch for diplomatic actions like missions that you can request from rivals or friends. Diplomatic features are a very important aspect of 4X games and knowing that Stardock decided to overhaul Sins diplomacy system with this new micro-expansion (again sold for $10). In early 2010 Stardock and Ironclad released Sins’ second expansion called Diplomacy. These new defensive features were well received because they relieved the player a bit from frenetic and repetitive defensive tasks, allowing them to focus more on other things. Labeled as a micro-expansion (that you could get for $10) it brought new defensive options, including formidable starbases and mine fields, among other things.

In late 2008 the same team released Sins’ first expansion called Entrenchment. Sins of a Solar Empire: Rebellion is the third expansion to the well known Stardock and Ironclad RTS/4X space game Sins of a Solar Empire, that was released in early 2008.

Endless space vs sins of a solar empire