Paradiso is the second campaign of Infinity, after Human Sphere, the expansion book of the Infinity Skirmish Game. Paradiso introduces some novelties in Infinity:

- Entirely new race: Tohaa
- A full set of campaigns set on the planet Paradiso and description of the fighting between Humans and the Combined Army
- Rules for creating other campaigns including Special Operations and rules for experience
- New troops belonging to the existing Infinity troops

The Paradiso Campaign is designed for 4 players, 300-point armies, and contains 14 different scenarios divided into 4 different chapters. Thanks to the unique map for the campaign, players play different missions depending on their victories or defeats. Due to this and the experience system, the campaign turns out to be different for each player.

Tohaa is a new faction introduced in the Infinity Campaign book: Paradiso.
It is a highly developed alien faction of scientists. They are characterized by symbiotic armor and three men per squad (the number 3 is sacred to them). They are currently at war with the Combined Army and want to forge an alliance with Humans.