Unity is the ultimate game development platform. Use Unity to build high-quality 3D and 2D games, deploy them across mobile, desktop, VR/AR, consoles or the Web, and connect with loyal and enthusiastic players and customers.
Publisher’s description
What is Unity 2021?
Unity 2021 is a proprietary ides & code editor program for Windows from Unity Technologies ApS.
Installation and requirements
Official installers exist for 64-bit as EXE (NSIS). Installation asks for administrator rights. The installer supports unattended (silent) installation.
Updates and version history
The current version is 2021.3.45f2, released on October 3, 2025. 79 versions are listed since March 23, 2021, each with links to its own installer files. That is about 17 releases a year. The last update is more than a year old.
Popularity and file types
On Windows it registers 2 file types, including .unity and .unitypackage. Similar programs include OpenCode, RStudio and Node.js (LTS).
Pros / Cons
Pros
- Documented silent install
- Frequent updates (about 17 a year)
Cons
- Proprietary licence: check the terms and price
- No native ARM64 build
- Installation needs administrator rights
- No update for more than a year
In short: Unity 2021 is an ides & code editor tool for 64-bit PCs. It is actively maintained. Administrators can deploy it unattended.
Is Unity 2021 safe to download?
- The file is served by download.unity3d.com; check that it is the publisher’s official mirror
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
AC7B45ED97D59F173D70A993362C84909C8C4B63280BD4CC30F9A5989ABF2596· Open the VirusTotal report for this hash - The link has not been checked yet
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 79 versions ›79 versions over 5 years · about 17 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 2021.3.45f2Latest | October 3, 2025 | — | 64-bit EXE (NSIS) |
| 2021.3.45f1 | October 16, 2024 | — | 64-bit EXE (NSIS) |
| 2021.3.44f1 | September 23, 2024 | — | 64-bit EXE (NSIS) |
| 2021.3.43f1 | August 22, 2024 | — | 64-bit EXE (NSIS) |
| 2021.3.42f1 | August 6, 2024 | — | 64-bit EXE (NSIS) |
| 2021.3.41f1 | July 23, 2024 | — | 64-bit EXE (NSIS) |
| 2021.3.40f1 | June 27, 2024 | — | 64-bit EXE (NSIS) |
| 2021.3.39f1 | May 28, 2024 | — | 64-bit EXE (NSIS) |
Release cycle and support
Version 2021.3.45f2 belongs to the 2021.3 release line, which reached its end of life on February 18, 2025: it no longer receives security updates.
| Release line | Released | Support ends | Latest version | Status |
|---|---|---|---|---|
| 6.6 | August 31, 2026 | not announced | 6000.6.7f1 | Supported |
| 6.5 | June 15, 2026 | August 31, 2026 | 6000.5.11f1 | End of life |
| 6.4 | March 18, 2026 | June 17, 2026 | 6000.4.12f1 | End of life |
| 6.3 (LTS)LTS | December 4, 2025 | December 4, 2027 | 6000.3.27f1 | Supported |
| 6.2 | August 12, 2025 | December 4, 2025 | 6000.2.15f1 | End of life |
| 6.1 | April 23, 2025 | August 12, 2025 | 6000.1.17f1 | End of life |
| 6.0 (LTS)LTS | April 29, 2024 | October 16, 2026 | 6000.0.85f1 | End of life |
| 2023.2 | November 14, 2023 | April 29, 2024 | 2023.2.22f1 | End of life |
Install from the command line
Silent install ›winget install --id Unity.Unity.2021 -eUnitySetup64-2021.3.45f2.exe /SRelated guide: How to use winget: install and update apps
Information
- Publisher
- Unity Technologies ApS
- Category
- IDEs & code editors
- Licence
- Proprietary
- Price
- See the publisher’s site
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- EXE (NSIS)
- Version
- 2021.3.45f2
- Released
- October 3, 2025
- Added to the catalogue
- October 1, 2022
- Versions listed
- 79
- Updates / year
- 17.4
- Website
- unity.com
- winget ID
- Unity.Unity.2021
File types it opens (2)
Ratings and reviews
No reviews yet. Be the first to rate it.
Alternatives to Unity 2021
See all ›-
OpenCode1.19.4OpenCode is an open source agent that helps you write and run code with any AI model. It's available as a terminal-based interface, desktop app, or IDE extension.Open source285.2K ↓ -
Open source705.1K ↓ -
Open source4.9M ↓ -
Open source88.8K ↓ -
VSCodium1.140.06880VSCodium is a community-driven, freely-licensed and telemetry-free rebuilt of Microsoft's Visual Studio Code.Open source394.5K ↓ -
Haxe4.3.7Haxe is an open source high-level strictly-typed programming language with a fast optimizing cross-compiler.Open source49.7K ↓ -
Open source12.3K ↓ -
Open source94.6K ↓
Frequently asked questions
Is Unity 2021 free?
Unity 2021 is proprietary (closed-source) software (licence: Proprietary). Whether it costs money depends on the edition: check the publisher’s site for prices and free tiers.
Is Unity 2021 safe to download?
The download comes from download.unity3d.com; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Unity 2021 with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Unity 2021 be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does Unity 2021 run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of Unity 2021?
The versions page lists all 79 versions with links to their official installer files, back to March 23, 2021.
What are alternatives to Unity 2021?
OpenCode, RStudio, Node.js (LTS), Apache NetBeans and VSCodium. The alternatives page compares them.
