Game developer interview questions for remote studios
Game programming interviews mix general programming, game maths, engine knowledge and performance, usually with a programming test or a small game task. Studios also want to know you can work with designers and artists on a remote team.
These are questions we see often in interviews for remote gameplay and game programming roles.
Updated October 2026 by the WorkRemote careers team
On this page
About the role and your experience
Openers that check you understand the job and have done the work.
Tell me about a game you finished.
Why they ask
Finishing is rare and valuable.
How to answer
Pick a finished game, even a jam game. Explain the idea, your role, a technical problem and what you cut to finish on time. Share the itch.io link.
Show a sample answerHide the sample answer
For a 72-hour jam I teamed up with an artist in Brazil and a composer in Poland. I built a time-rewind mechanic by recording the player's position and state each physics step in a ring buffer. We cut a second level to finish polish and sound. It placed in the top 10% for fun, and the rewind system is on my GitHub.
Why do you want to make games professionally?
Why they ask
Studios want passion with realism.
How to answer
Talk about what you enjoy building (systems, feel, tools) and show you understand the industry's realities, such as crunch risk and long development cycles. Mention a game the studio made and what you admire technically.
Technical questions
What you know and how you'd do the work, often with a live task or test.
What is the difference between Update and FixedUpdate in Unity?
Why they ask
A basic Unity question that shows whether you understand the game loop and physics.
How to answer
Update runs once per rendered frame, so its rate varies; use it for input and non-physics logic, scaled by Time.deltaTime. FixedUpdate runs on a fixed time step (0.02 seconds by default) and is where physics changes to Rigidbodies belong. Read input in Update and apply physics forces in FixedUpdate.
Why do you multiply movement by delta time?
Why they ask
Frame-rate independence is fundamental.
How to answer
Delta time is the time since the last frame. Multiplying speed by it makes movement the same per second whether the game runs at 30 or 120 frames per second. Without it, faster machines move characters faster.
What does the dot product tell you, and how would you use it in a game?
Why they ask
Game maths is tested in almost every gameplay interview.
How to answer
For two normalised vectors, the dot product is the cosine of the angle between them: 1 means same direction, 0 perpendicular, -1 opposite. Use it to check whether an enemy is in front of the player, for a field-of-view check, or for lighting.
Why use quaternions instead of Euler angles for rotation?
Why they ask
Rotation bugs are common and hard to debug.
How to answer
Euler angles can suffer gimbal lock, where two axes line up and you lose a degree of freedom, and they interpolate badly. Quaternions avoid gimbal lock, combine rotations cleanly and interpolate smoothly with slerp. Engines store rotations as quaternions and show Euler angles in the editor for convenience.
Your mobile game stutters every few seconds. What could cause it, and how do you find out?
Why they ask
Performance on phones is critical and very common in remote mobile game roles.
How to answer
Open the profiler on a real device. Regular stutters often come from garbage collection spikes caused by allocations every frame (strings, new lists, LINQ, boxing), loading assets during play, or expensive work on a timer. Fix with object pooling, caching references, avoiding per-frame allocations and loading assets in advance.
Show a sample answerHide the sample answer
On a runner game I worked on, the Unity Profiler on a cheap Android phone showed GC spikes every three seconds. We were instantiating and destroying coins and building UI score strings every frame. I pooled the coins and only updated the score text when it changed. The spikes disappeared and the game held 60fps.
What is object pooling and when do you use it?
Why they ask
A common optimisation for bullets, enemies and effects.
How to answer
Instead of creating and destroying objects repeatedly, you create a set in advance, deactivate them when not in use and reuse them. It reduces garbage collection and instantiation costs. Use it for frequently spawned short-lived objects. Unity has a built-in ObjectPool class.
What are ScriptableObjects used for in Unity?
Why they ask
Shows you understand data-driven design.
How to answer
ScriptableObjects are assets that hold data independently of scene objects, such as weapon stats, enemy configurations or game settings. Designers can create and tweak them in the editor without code changes, and many objects can share one, which saves memory.
In Unreal, when would you use C++ and when Blueprints?
Why they ask
Most Unreal teams use both, and balance matters.
How to answer
C++ for core systems, performance-critical code and anything complex or reused widely; Blueprints for high-level game logic, prototyping and letting designers tweak behaviour. A common pattern is building base classes in C++ and exposing properties and functions to Blueprints.
How would you design an enemy AI that patrols, chases and attacks?
Why they ask
A standard gameplay design question.
How to answer
A finite state machine with Patrol, Chase, Attack and maybe Search states, with clear transitions (sees player, loses sight, in range). Use navigation meshes for pathfinding and raycasts or overlap checks for vision. For more complex AI, mention behaviour trees, which Unreal supports directly.
How does a multiplayer game stop players from cheating on movement?
Why they ask
Multiplayer is a common requirement and a hard topic.
How to answer
Make the server authoritative: clients send inputs, the server simulates and sends back the true state. Clients predict movement locally to feel responsive and correct themselves when the server disagrees (reconciliation). Other players are shown with interpolation. Mention that Lagos-to-Europe latency is a good real-world test.
Behavioural questions
Past situations. Answer with a real example: what happened, what you did, what changed.
How do you handle a bug you cannot reproduce?
Why they ask
Games have many hard-to-reproduce bugs.
How to answer
Gather details (platform, steps, logs, save file, replay if available), add logging around the suspect system, try to reproduce under the same conditions (frame rate, device, network), and work with QA to narrow it down.
Situational questions
Hypotheticals about problems you'd meet in the job.
A designer says a jump "feels floaty". What do you change?
Why they ask
Game feel is a programmer's job too.
How to answer
Ask for a reference game, then adjust gravity (often higher when falling than rising), jump velocity, air control, coyote time and jump buffering. Expose the values so the designer can tune them, and test together.
Remote work questions
How you'll work from Nigeria with a team elsewhere: hours, power, internet, communication.
How do you keep scene and prefab merge conflicts under control on a remote team?
Why they ask
Binary and scene conflicts are painful for distributed teams.
How to answer
Lock files in Perforce or Unity Version Control, or agree file ownership; break big scenes into smaller ones or additive scenes; use prefabs so changes are isolated; and commit small changes often.
How would you work with an art team six hours behind you?
Why they ask
Programmers and artists depend on each other constantly.
How to answer
Agree asset specifications in writing, use placeholder assets so you are never blocked, share builds or short videos at the end of your day, and keep one overlap slot for live reviews.
Remote interview tips
Send playable builds, not just videos, and make sure they run on a typical laptop. A browser build on itch.io removes any download friction.
Programming tests for studios can be long, sometimes a small game in 48 hours. Clarify the time limit and what they value most before starting, and include a short README on what you would do with more time.
If the interview includes live coding, practise in plain C# or C++ without engine help; some studios test general programming separately.
Questions people ask
What is a typical game programmer test?
Either a programming test (C# or C++ problems, game maths) or a small game or feature built in an engine within 24-72 hours. Studios look at code structure, feel and polish.
Do game studios ask algorithm questions?
Many do, especially larger ones and for C++ roles. Expect data structures, memory and maths questions alongside engine-specific ones.
Should my portfolio be in the same engine as the studio uses?
Ideally yes. If not, show strong programming fundamentals and explain how your experience transfers.
Updated October 2026 by the WorkRemote careers team
Interview questions for roles close to game developer
- Software Engineer
A software engineer designs, writes, tests and maintains the code behind products, and it is one of the remote jobs Nigerians most often get with foreign companies. Entry-level remote roles are rare, so most people get their first two years of experience locally or through freelance work before landing a dollar-paid contract.
- Mobile Developer
A mobile developer builds apps for Android and iPhone, and most remote roles open to Nigerians use a cross-platform framework, React Native (often with Expo) or Flutter, so one codebase ships to both stores. It can be done fully remotely from Nigeria, but you need apps people can download, and some real-device testing on iOS.
- Android Developer
An Android developer builds native apps for Android phones and tablets, today mostly in Kotlin with Jetpack Compose. It is one of the cheapest software careers to start from Nigeria (no Mac needed, $25 once to publish on Google Play), and remote companies hire Nigerian Android developers, usually at mid-level and above.
- QA Engineer
A QA engineer makes sure software works before users find out it does not, by planning tests, finding bugs and, increasingly, writing automated tests in code with tools like Playwright, Cypress and Postman. Remote QA roles open to Nigerians exist, especially for automation engineers (often called SDETs); purely manual testing roles are fewer and pay less.