Past Self
GMTK Game Jam 2025 – Project Breakdown
- Platform: PC
- Engine: Unity 6.2
- Team Size: 3
- Duration: 4 days (Jam)
- Itch.io Page
Team
The team consisted of 3 members:
- 2 Developers
- 1 Level Designer
Brief
Past Self is a time‑loop puzzle‑platformer created for the GMTK Game Jam 2025. Each run lasts only a few seconds; when the timer ends, a ghost of your past self replays your actions, letting you cooperate with previous runs to open doors, press buttons, and collect keys to reach the exit.
Project Goals
Deliver a jam‑ready prototype that clearly communicates the time‑loop cooperation mechanic, with a short, polished flow: readable goals, tight timers, simple inventory/keys, and fast iteration on level design.
Primary responsibilities
- Core Loop & Level Scripting
- Key & Inventory Systems
- UI & Settings (Music/SFX)
- Music Composition & Integration
Other hats
- Bug Fixing & Polish
- Player Feel Tuning
Post Mortem
Short jams reward scope control and clear feedback. Tight timers plus readable doors/buttons made the loop click; a simple audio mix and options helped keep the experience cohesive under time pressure.
Key Features
1. Time‑Loop Cooperation
Short runs (5–15s) create a recording; your past self repeats actions to hold buttons or open paths.
Keys and doors form simple goals; cooperation with previous runs solves otherwise impossible routes.
My Contributions
1. UI Integration
Main menu UI, with play, settings and quit buttons.
Minimal UI with Music/SFX sliders.
2. Other stuff
- Designed & implemented the key collection and inventory logic
- Helped build and tune core player mechanics
- Composed and integrated the background music
- Fixed various game‑breaking bugs and added polish
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