3+
years of commercial Unity development.
Unity Developer & Gameplay Systems Designer
Marsel
Zakiev.
Gameplay systems, prototyping and production development across PC, mobile and VR.
01 / Intro
Gameplay thinking,
built for production.
Focused on gameplay systems, prototyping, AI, VR interaction and optimization.
Gameplay systems
Prototyping
Production development
02 / Spirit Fusion
Spirit Fusion.
Personal Project / System Design / Unity
Metroidvania built around elemental combinations. Fire is the base element; two additional elements form an active build with three pairwise combinations.
01 Base
02 Active
03 Active
01 + 02
01 + 03
02 + 03
-
01
Element Builds
3 active elements create 3 pairwise combinations.
-
02
World Interaction
Elemental rules affect traversal and level states.
-
03
Iteration
Mechanics are tested and refined through gameplay prototypes.
03 / Mobile Development
Mobile
Development.
Commercial Development / Unity / Mobile
Gameplay and production development for commercial mobile projects published under FreePlay, including mechanics, AI, UI, metagame and optimization.
Selected team contribution within released projects.
Movement & Game Feel
Precision with a sense of speed.
Responsive gameplay control combined with controlled visual inertia to preserve both precision and a sense of speed.
Input
Trajectory
Speed
Drift
Visual inertia
Control feel
Gameplay & AI
Readable race pressure.
Context-aware rivals react to track direction, obstacles, bonuses and relative position instead of following a fixed ideal route.
Production systems
Meta Systems.
Connected core runs to longer-term goals through progression, rewards, customization and the in-game resource economy.
Production contribution
Mechanics · UI · Metagame · Optimization · Refactoring
04 / VR Systems
VR Systems.
Commercial VR Development / Unity
Commercial multiplayer VR development where physical player actions are translated into validated gameplay events and synchronized feedback.
Role / Scope
- Gameplay Programmer
- Gameplay Systems
- Unity / C#
- Location-Based Multiplayer VR
VR Gameplay Showcase
Commercial gameplay / Metaforce
Interaction Logic
One physical gesture, four validation layers.
Physical interaction should feel immediate while multiplayer state remains consistent and verifiable.
01
Gesture
Controller / tool / contact
02
Candidate
Collider / normal / cooldown / state
03
Network Authority
Master state / pause / penalty / duplicate
04
Confirmed Feedback
VFX / sound / HUD / score update
System Case / Splash
Territory as a Combat Economy.
Painted territory is not decoration. On the team's own territory, weapon reload becomes 2x faster - linking control, combat tempo and team routing.
Core rule2x faster reload on controlled territory.
-
01 / Hit
Collider and surface normal define the paint imprint.
-
02 / Grid
Cells store team and ownership state.
-
03 / Zone
Position on controlled territory changes reload tempo.
-
04 / Strategy
The paint front influences team routing and territorial decisions.
My Contribution
Grid-based territory model · synchronized state · ownership · team scoring · HUD · 100% coverage win condition
Production Context
The same reusable interaction pattern supported Fishing, Frogs, MiniCoins and Splash: physical actions stay readable while accepted room state remains consistent.
Core capabilities
Tools for building
playable systems.
- 01Unity
- 02C#
- 03Gameplay Systems
- 04System Design
- 05AI
- 06VR Interaction
- 07Optimization
- 08Git
Documents / Selected files
Documents.
Portfolio and professional recommendations.
Full Portfolio PDF
Game development portfolio · 18 pages · 2026
Recommendation Letter — Metaforce CEO
Metaforce · CEO · 1 page · 2026
Recommendation Letter — Metaforce CTO
Metaforce · CTO · 2 pages · 2026
Recommendation Letter — Freeplay
Mobile development · 1 page · 2026
05 / Contact