70%Strong matchTurnbound
78%45378% positive reviews, Mostly Positive across 453 reviews·Roguelike Deckbuilder · Auto Battler
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FLASK is a roguelike autobattler about alchemical greed on the new frontier. Build unstoppable homunculi, barter with mutated merchants, and slay hordes of monsters to harvest their valuable blood. It's time to get bloody... Bloody rich!
FLASK
Steam
The Goblin Gate has opened once more, and great profits await you, should you be strong enough to slay the monsters and drain their valuable green blood.
Fortify your tower, brew your homunculi, and prepare for a bloody adventure!
FLASK combines deckbuilding strategy with autobattle combat in a post-medieval dark fantasy world. You are a debt-ridden alchemist, braving the goblin wastes in your leased mobile tower. Command your homunculus heroes in battle against hideous fiends, harvest their blood, and get rich.


In this dark frontier, monsters’ green blood is as good as liquid gold. Slash, stab, and smash your way through an endless horde of mutated, rotting creatures as you grow strong enough to battle rival alchemists and establish your dominance on the road!


Each hero has their own unique strategies, but what matters most is how you combine them to create a strong team. In addition to flasks, your heroes can gain items, snacks, and mutations to grow increasingly powerful. Each flask has two elements. Equipping at least three flasks of any element unlocks powerful team-wide effects that change how you play.


Face rival alchemists in asynchronous multiplayer combat. Every third map, an enemy player appears, ready to challenge you with their own homunculi! Survive, and you’ll earn the chance to either mutate one of your heroes for a powerful effect or recruit the enemy homunculus to your team!


Every run through the Goblin Gate promises great riches and harrowing discoveries. Gruesome monsters, greedy merchants, and powerful allies await those bold enough to venture deeper. But beware - delve too far, and you may uncover the origins of these creatures… and the truth behind the gate itself.
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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