AltTester
AltTester: Automate game UI tests across devices, with object inspection and CI/CD support. Ranked #3 of 18 in Game Testing Software by our editors (8.8/10); pricing: Free plan · 30-day trial; best for unity and Unreal teams needing device-based automation.
At a glance
- Editor score8.8 / 10
- PricingFree plan · 30-day trial
- Best forUnity and Unreal teams needing device-based automation
- Free planYes
- Automated test executionYes
- Founded2018
- Facts checked21 Sep 2026
Where it wins
- Inspect game-object hierarchies and record scripts from interactions
- Write tests in C#, Python, Java, or Robot Framework
- Run tests concurrently and connect to device-cloud services
Where it doesn't
- AltTester Lite is free only for eligible studios
- Lite limits users to one connection and GUI mode
- Nintendo Switch support is an add-on for customized Pro subscriptions
Our verdict on AltTester
AltTester is a UI test automation toolkit for teams building games and 3D applications with Unity or Unreal. It instruments an application so testers can inspect game-object hierarchies and properties, interact with the interface, record workflows, and generate test scripts. It suits studios that need repeatable functional checks across desktop and mobile targets, rather than a tool centered on playtesting workflows or performance monitoring. Tests can target PC, Mac, Android, iOS, and WebGL, with Nintendo Switch support available as an add-on for customized Pro subscriptions.
The pricing structure starts with AltTester Lite, which is free for eligible studios with annual revenue under €500,000. Lite provides one connection and GUI mode, with a Unity GPL-3 SDK or Unreal Non-GPL SDK. AltTester Pro adds AI Extension and CLI, two parallel connections included, recorded script generation, advanced selectors, CI/CD batchmode support, and secure WebSocket connection. The listed starting price is €75 per seat per month with annual billing, and a 30-day trial is available. Teams should compare Lite's eligibility and GUI-only constraint with their needs for concurrent execution or command-line and CI/CD workflows.
The product's breadth is most useful when test authoring and execution need to fit existing workflows: teams can write in C#, Python, Java, or Robot Framework, simulate keyboard, mouse, touchscreen, joystick, and other device input, and generate screenshots and reports. Integrations include Appium, BrowserStack, Bitbar, AWS Device Farm, and Sauce Labs, alongside Selenium and development tools such as VS Code and JetBrains. CLI and CI/CD support, plus AI Extension and MCP Server-assisted workflows, extend those options. Choose AltTester for engine-instrumented UI automation across devices; teams focused on playtesting or performance monitoring should look elsewhere.
Questions about AltTester
Is there a free trial of AltTester? Yes: a 30-day free trial; no card is needed.
What does AltTester run on? Windows, macOS and Linux. It runs as a desktop app.
What does AltTester integrate with? 9 integrations, including Appium, BrowserStack, Bitbar, AWS Device Farm and Sauce Labs.
Who is AltTester built for? Solo users, small businesses, mid-market companies and enterprises (our editorial estimate).
Your product? Our editors can test AltTester in depth and publish a review, labelled as paid · from $149/mo →
AltTester pricing
All 2 AltTester plans and prices →
AltTester fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Automated test execution | Yes |
| Playtesting workflows | No |
| Performance monitoring | No |
| Test environments | Hybrid |
| Supported game engines | Unity, Unreal Engine |
| Target platforms | PC, Mac, Windows, Android, iOS, WebGL, Nintendo Switch |
| Free trial | 30 days · no card needed |
| Deployment | Desktop |
| Platforms | Windows, macOS, Linux |
| Support | Email, Community, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 9 integrations: Appium, BrowserStack, Bitbar, AWS Device Farm, Sauce Labs, Selenium … |
| Pricing | Free plan · 30-day trial (source) |
| Website | alttester.com |
| Facts checked | 21 Sep 2026 |
AltTester integrations
AltTester lists 9 integrations on its own site.
- Appium
- BrowserStack
- Bitbar
- AWS Device Farm
- Sauce Labs
- Selenium
- Claude
- VS Code
- JetBrains
Alternatives to AltTester
- ObvraA broad hybrid testing platform for teams automating gameplay, UI, and regression checks.9.3
- GameDriverRepeatable runtime tests for studios validating games across engines and platforms.9.1
- GuaA focused open-source choice for semantic UI and visual regression testing.8.6
See all AltTester alternatives →
AltTester vs the competition
- AltTester vs Obvra
- AltTester vs GameDriver
- AltTester vs Gua
- AltTester vs Airtest Project
- AltTester vs GAutomator
- AltTester vs T-Plan Game Test Automation
Compare AltTester with any tool side by side →
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Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
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