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Game Development · head to head

Bevy vs Photon Engine

Bevy logo

Bevy

Game Development

A refreshingly simple data-driven game engine built in Rust

From
Free
Rated
-
Full reviewWebsite
Photon Engine logo

Photon Engine

Game Development

Hosted multiplayer networking billed by concurrent users, not by seat or by player

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Bevy rust only, so it assumes a language most game teams do not already use; Photon Engine billing follows peak concurrent users, so a single stream or a launch weekend raises the bill immediately, and studios that cannot forecast concurrency cannot forecast the cost of their own launch.
  • They diverge on capability: Bevy covers Entity Component System, Photon Engine covers Concurrent user billing.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Bevy and Photon Engine actually diverge.

Attributes where Bevy and Photon Engine differ
AttributeBevyPhoton Engine
Pricing modelfreePer month by peak concurrent users
PlatformsWindows, Macos, Linux, WebglWindows, macOS, Linux, iOS, Android, Web, Console
Founded2020Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Game Development).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Bevy

  • Entity Component System
  • 2D/3D rendering
  • Audio system
  • Asset pipeline
  • Hot reloading
  • Cross-platform
  • Modular architecture
  • Parallel systems

Only in Photon Engine

  • Concurrent user billing
  • Photon Fusion
  • Photon Quantum
  • Photon Voice and Chat
  • Global relay
  • Matchmaking and rooms

What people use each for

The jobs each tool is most often brought in to do.

Bevy

  • 2D and 3D game development in Rustnot Photon Engine
  • Data-driven design using an entity component systemnot Photon Engine
  • Shipping to Windows, macOS, Linux, web, iOS and Android from one codebasenot Photon Engine
  • Projects wanting a permissive licence with no royalties or feesnot Photon Engine

Photon Engine

  • Adding multiplayer to a Unity game without hiring a network engineernot Bevy
  • Competitive titles needing deterministic rollback rather than state synchronisationnot Bevy
  • Games with a large but thinly spread player base, where concurrency stays low and per player pricing would cost morenot Bevy
  • Training and simulation projects that need shared real-time state outside gamesnot Bevy

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Bevy

  • Rust only, so it assumes a language most game teams do not already use
  • No visual editor of the kind Unity or Godot provide, so scenes and logic are written in code
  • Built around ECS, which is a different mental model from the scene-graph engines most developers come from

Photon Engine

  • Billing follows peak concurrent users, so a single stream or a launch weekend raises the bill immediately, and studios that cannot forecast concurrency cannot forecast the cost of their own launch.
  • Exceeding the band does not degrade gracefully; additional players are refused connections until concurrency falls or the plan is upgraded, which is a visible outage to your players at the worst possible moment.
  • PUN, the product most tutorials and courses still teach, is legacy, so a large share of the learning material available online points new projects at the wrong SDK.
  • Self-hosting is an enterprise arrangement rather than a purchasable licence, so a studio that wants its servers on its own infrastructure for cost or compliance reasons cannot simply buy that.
  • It is a networking layer only; accounts, persistence, leaderboards, inventories and anti-cheat all come from other services, so the multiplayer stack ends up as several vendors rather than one.

Pricing, plan by plan

Bevy

Free
  • Open SourceFree
    • Full engine access
    • ECS architecture
    • Hot reloading

Photon Engine

Free
  • FreeFree
    • A small concurrent user allowance for development and early testing
    • All regions available
    • No time limit on the free tier
  • Entry band$9/month
    • Around one hundred concurrent users
    • Full SDK access
    • Regional server selection
  • Higher bands$undefined/month
    • Sold in steps up to tens of thousands of concurrent users
    • Price rises with each band rather than with total players
    • Enterprise and self-hosted arrangements handled directly by Exit Games

Which should you pick?

Choose Bevy if

  • You need entity component system.
  • You want to start without paying.
  • You work on Windows, Macos, Linux, Webgl.
  • You also want 2d/3d rendering.
Bevy review

Choose Photon Engine if

  • You need concurrent user billing.
  • You want to start without paying.
  • You work on Windows, macOS, Linux, iOS, Android, Web, Console.
  • You also want photon fusion.
Photon Engine review

Questions people ask

Is Bevy or Photon Engine better?
Neither clearly leads. Bevy starts at Free and Photon Engine at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Bevy or Photon Engine?
Bevy starts at Free and Photon Engine at Free.
Does Bevy or Photon Engine run on more platforms?
Bevy runs on Windows, Macos, Linux, Webgl. Photon Engine runs on Windows, macOS, Linux, iOS, Android, Web, Console.
Can I use Bevy for free?
Both have a free tier, so you can try either at no cost before committing.
What is Bevy best used for?
Bevy is most often used for 2d and 3d game development in rust, data-driven design using an entity component system, shipping to windows, macos, linux, web, ios and android from one codebase, projects wanting a permissive licence with no royalties or fees. Of those, 2d and 3d game development in rust and data-driven design using an entity component system are not what Photon Engine is typically brought in for.
What can Bevy do that Photon Engine cannot?
Bevy covers Entity Component System, 2D/3D rendering, Audio system, Asset pipeline. Photon Engine covers Concurrent user billing, Photon Fusion, Photon Quantum, Photon Voice and Chat.

Answered from the vendors’ own pages

Bevy: How much does Bevy Engine cost?

Bevy is 100% free, forever. There are no licensing fees, contracts, or sales cuts, whether for development, deployment, or commercial use.

Source
Photon Engine: What exactly is a concurrent user?

A player connected to Photon at that moment. Your plan is sized by the peak of that number, not by downloads, registered accounts or monthly actives.

Bevy: Is Bevy Engine open source?

Yes. Bevy is open source under the permissive MIT or Apache 2.0 licenses, meaning you can use, modify, and distribute it freely.

Source
Photon Engine: Which product should a new project use?

Fusion for most real-time games, Quantum where determinism matters such as fighting and competitive titles. PUN is legacy and should not start a new project despite the volume of tutorials.

Bevy: Are there any hidden costs with Bevy Engine?

No. Bevy has no license fees, contracts, or hidden charges. It is community-driven and funded through voluntary donations rather than commercial licensing.

Source
Photon Engine: Does it work outside Unity?

Unity is the first-class target. Unreal and other engines are supported through Realtime SDKs with less coverage and slower feature parity.

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