Invoice clients for game development projects, Unity/Unreal builds, and game mechanics. Professional invoices from Tidybill.
A game developer invoice covers work building interactive games or game components using engines such as Unity or Unreal Engine, or custom frameworks. Game developers are hired for a wide range of work: building mobile casual games, creating serious games or training simulations for corporate clients, developing game mechanics, scripting AI behaviours, integrating art assets, implementing physics systems, and optimising performance for target platforms. Because game development often involves collaboration with artists, sound designers, and producers, invoices should clearly define what the developer specifically contributed versus what other team members provided. Project invoicing is common for defined game builds, while hourly or day-rate billing suits ongoing game development support or engine-level technical work.
| Service | Typical Rate | Unit |
|---|---|---|
| Game development (day rate) | 500 | day |
| Mobile game MVP build | 6000 | project |
| Game mechanic / system development | 1000 | feature |
| Unity asset store integration | 300 | asset |
| Platform port (iOS to Android, etc.) | 1500 | project |
| Game technical review and optimisation | 800 | project |
For defined game builds, use milestone invoicing: concept and prototype, core mechanics complete, beta build, final release. For ongoing development work on a live game, invoice weekly or bi-weekly with a feature/task summary. Reference the game name, platform, and engine on every invoice. Include third-party asset and SDK costs as reimbursable expenses.