2D Games
Math Galaxy – Making Math Learning Fun
An educational math game featuring interactive addition, subtraction, multiplication, and division challenges designed to make learning enjoyable, improve calculation ski…
View case studyGame developer · Available for work
I’m Tanmoy Roy, a game developer with 10+ years in the industry and 600+ client orders completed. I help studios and founders turn ideas, unfinished builds, and broken projects into games that are ready to release.
5.0 from 435 reviews600+ client ordersTop Rated on Fiverr

2D & 3D · C# · 10+ years
01 / About
A decade of making games work, then making them feel good.
I’ve spent over 10 years building games and apps, with more than 600 client orders completed. My work covers the full arc: prototyping an idea, programming gameplay and systems, polishing the feel, and getting a build ready to ship.
Most of my work targets mobile and PC, with gameplay and systems written in C#. I’m comfortable joining an existing codebase, rescuing a project that has stalled, or starting from a blank scene and building upward.
Based in Bangladesh · Working with clients worldwide
600+Client orders completed
5.0From 435 reviews
10+Years in the industry
02 / Services
Whether you need a game built from scratch, a stubborn bug fixed, or a project pushed over the finish line, the work is scoped around what the build actually needs.
01
Complete 2D and 3D game development, from core mechanics and prototypes to full production and publishing support.
Best forStudios and founders who need a complete game built and shipped.
02
Custom C# programming for the systems that make a game tick: gameplay, physics, AI, progression, economy, and scalable UI.
Best forTeams that have the vision and need the systems built properly.
03
Turn an idea, reference, or template into a playable build fast — then test the core loop before committing to full production.
Best forFounders validating an idea before investing in a full build.
04
Diagnose and fix build errors, crashes, broken mechanics, and performance bottlenecks in existing projects.
Best forProjects that are stuck, unstable, or nearly there but not quite.
Also available for educational games, hypercasual games with AdMob, and template customization.
03 / Selected work
A selection of 2D and 3D projects across mobile, PC, simulation, and hypercasual. Each case study covers what the game is and the work that went into it.
2D Games
An educational math game featuring interactive addition, subtraction, multiplication, and division challenges designed to make learning enjoyable, improve calculation ski…
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3D Games
A 3D stealth puzzle game where your voice sets your speed — and your risk.
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2D Games
A fast-paced 2D underwater action-adventure with submarine combat and a full mobile economy.
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3D Games
A hypercasual drifting game built by turning a generic marketplace template into a polished one-touch experience.
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2D Games
A circular chess game with tutorials, AI opponents, challenges, quests, and deep customization.
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3D Games
A realistic 3D farming prototype with tractors, crops, harvesting, and farm management.
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2D Games
A color-matching arcade game with falling balls, power-ups, and AdMob integration.
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3D Games
A 3D virtual furniture showroom with drag-and-drop placement and first-person exploration.
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2D Games
A pixel-art infinite runner with single-player and local multiplayer modes.
View case studyLooking for something closer to your project? Tell me what you’re building and I’ll tell you how I can help.
04 / Skills
The work spans programming, game design, UI, assets, and the unglamorous optimization that keeps a build stable.
Engines & languages
Comfortable across 2D and 3D projects, from scene setup and prefabs to custom editors, physics, and production architecture.
Gameplay & systems
Gameplay loops, player controls, AI behaviour, progression, quests, shops, leaderboards, and reward systems designed to work at scale.
Mobile & monetization
Android and iOS builds, touch controls, AdMob integration, in-game economies, and performance work for modest hardware.
Art, UI & polish
Game assets, pixel art, UI implementation, VFX, animation, and the small details that make a build feel finished.
How I work
The best projects are the ones where the client knows what is happening. These are the principles I work by.
01
Not just the code. I explain what I am doing, why it matters for the game, and where I think the build can be improved.
02
Projects move. Requirements change. I work through revisions without treating them like a problem.
03
I look for what is best for the game, not just what is easiest to deliver. That often means going one step further than asked.
05 / Reviews
5.0
5.0 average from 435 reviews — 432 five-star, 2 four-star, and 1 three-star.
06 / Contact
Tell me what you are making, what is not working, and where you want the project to go. I will reply with a clear next step.
A few lines are enough to start.