Party-Building Roguelike RPG ‘Dungeon Picnic’ Launches Free Limited-Time Steam

Solo developer Lapismine has released a free, limited-time Steam demo for its party-building roguelike RPG Dungeon Picnic. The full game is in development for PC via Steam, with its release date still to be announced.

The demo covers the first area and provides access to four playable characters. Save data cannot be transferred to the full release because some mechanics and specifications differ between the two versions. Dungeon Picnic will also participate in Steam Next Fest beginning October 19, 2026.

Players select four characters and develop the entire party during each run. Skills and equipment appear randomly, and losing the entire party removes the skills and equipment collected during that attempt.

Combat uses a shared Mana resource instead of individual MP pools for each character. Breaking an enemy by exploiting its weakness grants an additional turn while increasing Mana recovery and reducing Mana costs. Attacking an enemy during its broken state also raises the party’s critical hit rate.

Characters can use cooperative skills to trigger follow-up attacks and counters outside the standard turn order. This lets party composition influence how often characters can act and how efficiently the shared Mana pool can be managed.

Skills are governed by cooldowns, particularly stronger abilities, but certain builds can turn those restrictions into offensive options. Players decide how far to push their exploration based on their current condition and resources. They can conserve supplies and head toward the boss or continue exploring in search of additional rewards at greater risk.

The developer shared the following note about generative AI usage:

Some characters were designed by AI and created by the developer.