Designed level layouts, combat encounters, and progression for a co-op, top-down action roguelite, contributing to the publisher demo and vertical slice.

Designed a randomized enemy spawning system with configurable difficulty, enemy composition, and spawn timing. Wrote specifications and parameter examples, worked with programmers on implementation, and refined the system through testing.

Defined room variation and selection rules to prevent repeated encounter layouts within a run. Coordinated gameplay and environment-art sublevels with programmers and level artists.

Designed and implemented an NPC defense event in UE5 Blueprints, including progress tracking, optional objectives, player interactions, success and failure conditions, and rewards.

Built playable prototypes of traps and interactive objects to communicate design intent and test gameplay before further production.

Created flowcharts, data tables, and asset requirements for engineering and art teams. For the NPC event handoff, documented outstanding production needs and marked Blueprint placeholders for final animation, VFX, model, and UI assets.