No. An ad SDK for HTML5/web games is a client-side JavaScript library. You call methods like showInterstitial() or showRewarded() from game code and handle the callback events; the SDK itself talks to ad networks directly. You only need a backend for your own game logic (saves, leaderboards), not for serving ads.
At a glance
| Fact | Value | Source |
|---|---|---|
| Ad SDK integration point | client-side JS calls | |
| Unity calls JS via | .jslib plugin | docs.unity3d.com |
| Godot 4 calls JS via | JavaScriptBridge singleton | docs.godotengine.org |
No. An ad SDK for a web game is a JavaScript library that runs in the browser alongside your game. You add a script tag or module, call its methods (show interstitial, show rewarded, load banner) at the right moments, and listen for its callback events. The SDK itself makes the network calls to ad demand; you don’t run a server to serve ads.
How does this look by engine?
- Unity WebGL: your C# code calls a JavaScript function through a
.jslibplugin, which then calls the ad SDK’s JS methods (see the Unity manual on browser scripting). - Godot 4: the same round trip goes through the
JavaScriptBridgesingleton. - Phaser, Construct, plain JS/Canvas games: call the SDK directly from game code, no bridge layer needed.
On error handling: design for an empty result, not a network failure. If no ad is available, the SDK reports an empty/no-fill outcome – your game should continue normally rather than block waiting for an “error” event that may never fire.
Where you do need a backend: your own save data, leaderboards, or anything server-authoritative. That’s a separate system from the ad SDK and has nothing to do with how ads are requested or shown.
For monetization, Playgama Ad connects one SDK to 11 demand partners, including Google Ad Manager.
Sources
- Playgama Bridge SDK – getting started
- Unity manual: interacting with browser scripting
- Godot docs: exporting for the Web
- Playgama Ad
Related questions
What happens if no ad is available?
The SDK reports an empty/no-fill result. Your game should treat this as normal and continue play rather than wait for an error event.
Do I need to change my game’s save system for ads?
No. Ad SDKs are separate from your save or leaderboard backend; they only handle requesting and displaying ads client-side.
Last updated: 24 September 2026