THYSIASTERY is a survival game about a squad of doomed souls in a constantly changing environment, requiring impeccable tactical planning. The game's visuals evoke the 16-bit console era, offering pixelated graphics with a deliberately limited color palette. Behind this nostalgic facade lies a brutal turn-based combat system that punishes the slightest miscalculation with the ultimate destruction of the squad. Success in the confrontation with nightmarish creatures depends largely on the skillful use of a unique knowledge-sharing mechanic. Group members can learn from each other's skills, thus creating versatile fighters capable of tackling the most challenging challenges. A flexible modifier system allows for fine-tuning the entry threshold, adapting the harsh rules to personal preferences.