Amplitude Studios is offering new free content for both Endless Legend and Endless Space, coinciding with holiday sales on each game. Here's the deal:

Publisher Iceberg Interactive and award-winning developer Amplitude Studios revealed today a treasure chest of new, free add-on content for this year’s widely acclaimed Endless Legend and its award-winning predecessor Endless Space, while simultaneously announcing massively discounted prices for the Amplitude Endless Pack. Free add-on “Visions of the Unseen” gives 4X fantasy-strategy game Endless Legend a new minor faction (the community-chosen “Eyeless One”), 10 new side-quests, plus more than 10 significant enhancements, adjustments and improvements, while its predecessor Endless Space Disharmony’s replay value grows yet again with “Chronicles of the Lost,” featuring eight new Exploration Random Events, 24 Colonization Random Events, The Vaulters introduction and tons more.

To top it off, only during the Steam Autumn sale, Iceberg Interactive and Amplitude Studios offer gamers the Amplitude Endless Pack, a three-game pack featuring discounted prices for the Emperor Edition of Endless Legend (-33%), the Emperor Pack for Endless Space and Endless Space Disharmony (-66%), and the Dungeon of the Endless Crystal Pack (-33%), plus a 33% discount on top.