Stellaris launched in 2016. Its latest content pass costs $49.49. And right now, it’s holding its own near the top of the Steam charts against newer, higher-priced competition.

Season 10 of Paradox Development Studio’s space strategy game sits at #4 on the Steam Top Sellers chart — a striking position for a decade-old game’s expansion pass. That’s a decade-old game’s expansion pass beating a freshly packaged offering from one of the biggest publishers in the industry.

The economics are straightforward, even if the commitment isn’t. Paradox releases seasonal expansion passes — bundles of DLC spaced across a year — at a discount to buying each pack individually. Season 10 includes the Nomads expansion (Q2 2026), which adds mobile nomadic empires and colossal Arkships, followed by Willpower (Q4 2026), which introduces ideology mechanics and new megastructures. Two scenario packs and an exclusive species portrait round out the bundle. The pass offers a 20% discount over individual purchases, according to the Steam listing.

The model works because Paradox keeps updating the base game. A 10th-anniversary patch arriving in May adds bug fixes, an Arachnophilia Mode, and a portrait substitution system, alongside discounts on the base game and existing DLC and a development documentary.

This is the Paradox formula laid bare: sustained investment in a single title over years, funded by players willing to pay premium prices for incremental content. Stellaris, Crusader Kings, Europa Universalis — each operates as a platform rather than a product. The result is a player base that treats a ten-year-old game as a living service and opens its wallet accordingly.

Whether that’s loyalty or sunk cost depends on your perspective. The Steam charts suggest it doesn’t much matter which.

Sources