Project Exilium - Breeding Protocol

Project Exilium – Breeding Protocol takes the proven formula of Slay the Spire and grafts it onto a premise as absurd as it is explicit: you're commanding a party stranded in hostile space, and the only way to survive involves activating an alien breeding protocol by accumulating lust during combat.

The deck-building core remains intact—you'll draft cards, compose synergies across elemental archetypes, and face escalating boss encounters as your run progresses. What nocturnalillusions adds is a second resource layer: lust functions as both a strategic threshold and narrative device. Reaching maximum lust doesn't end your turn or penalize you; instead, it unlocks the Breeding Protocol, which presumably shifts the mechanical and visual nature of subsequent encounters. Your party composition gates access to different card pools, meaning a team of three aliens grants entirely different deck-building options than another arrangement.

The adult content here leans heavily into pregnancy and alien transformation themes, presented through card artwork and mechanical flavor rather than extended narrative sequences. If you've played Slay the Spire and found yourself curious about a version where erotic sci-fi worldbuilding interweaves with deckbuilding decisions, this scratches that specific itch without sacrificing the tactical depth that makes roguelikes engaging. Nocturnalillusions signals ongoing development, so expect balance adjustments and new cards in future patches.

The HTML5 build runs across browsers, macOS, and Android, making it accessible across devices. At version 0.1, this is early access territory—the foundation is solid, but content breadth will likely expand.