Ship patches to players, not full downloads.

PatchKit hosts your builds, computes the difference between versions and delivers it through your own launcher on Windows, macOS and Linux. Upload a zip, press publish, done.

30 days, 150 GiB of transfer, no credit card. Cancel anytime.

Cartel Tycoon 0.8.6.0 Delta patch
Full build
1,158 MB
Players download
212 MB
Delivered via
Amazon CloudFront
Launcher by
tinyBuild

Studios shipping through PatchKit

RecRoom Bossa Studios UK tinyBuild Theorycraft Games nWay Eleventh Hour Games Quell WorldBLD

One release, from your build machine to the player's disk.

Each step is automated. You touch the first one, your players see the last.

  1. Step 1

    Upload

    Zip the build and drop it in the web panel, or push it from CI with the command-line tools.

    You
  2. Step 2

    Verify

    Files are checked on several levels. Missing executables and broken archives are caught before publishing.

    PatchKit
  3. Step 3

    Diff

    A delta patch is computed against every previous version, so players only download what changed.

    PatchKit
  4. Step 4

    Deliver

    Content goes out through Amazon CloudFront edge locations, with 99.98% uptime.

    PatchKit
  5. Step 5

    Play

    The launcher notices the new version, patches in the background and repairs damaged files on demand.

    Your players

A launcher that looks like your studio, not like ours.

Built on the Chromium engine, the launcher is a web page you control. Any HTML, CSS and JavaScript you write becomes the player's first screen.

  • Windows, macOS and Linux from one project
  • News feed, changelog and patch notes built in
  • Sign-in with Google, Facebook, GitHub, Web3 wallets or your own accounts
  • License keys and DRM when you need them

See the launcher

Last Epoch launcher by Eleventh Hour Games, built on PatchKit
Last Epoch launcher, Eleventh Hour Games. Designed by the studio, run by PatchKit.

Publish from the browser or from your pipeline.

No desktop tools required to get a game online. Create a version, attach the zip, publish. When the team outgrows drag-and-drop, the command-line tools take over and plug into Jenkins, GitHub Actions or any CI you already run.

  • Faster uploads than the web form for large builds
  • Channels for stable, beta and internal builds
  • Account collaborators with separate permissions
  • API access for everything the panel can do
New version, label and changelog, zip attached, verified and diffed, published to channel main. 24 s loop

Or script it and never open the panel again.

One command uploads, verifies, diffs and publishes. The same flags work on a developer's laptop and in a build agent.

# release.yml, last job
$ patchkit-tools make-version \
    --secret $PK_APP_SECRET \
    --label "0.8.6.0" \
    --changelog-file CHANGELOG.md \
    --files ./build/win64 \
    --publish

Uploading      cartel_tycoon_win64.zip   1,158 MB
Verifying      executables, archives      ok
Diffing        against 0.8.5.768          212 MB delta
Publishing     channel: main              live
50 millionplayers served through PatchKit launchers
120 TiBof game builds hosted and kept versioned
2,000developer accounts, indie to AA

What studios say after launch

“We came to Patchkit with a unique challenge – building a game launcher that could also be used to set up and manage our custom hardware system. Despite the short timeframe, they delivered an excellent product. While the project scope expanded due to the complexity of integrating our system, they adapted well and worked hard to get it done. We particularly appreciated their ability to take the challenges in stride and respond quickly to get us to a successful launch.”

Martin TweedieCTO, Quell

“As a big Unity development agency, we expect reliability, and with PatchKit the best thing is that now we never had any breaks in the distribution of our games. When we do strike a problem, their support team is always there and comes with the solution almost instantly!”

Bartek NowakowskiBoard Member, The Knights of Unity

“PatchKit has been an incredible partner for Rec Room. Their team is highly invested in our success with prompt communications and willingness to help with custom implementations. With PatchKit, we know we're getting reliability, great support, and real value.”

Lucian HardnerRelease Manager, Rec Room

Try it on a real build this week.

Sign up, upload your current version, and hand a launcher link to one tester. You can have a working update flow the same afternoon.

Included in the 30-day trial

  • Data transfer 150 GiB
  • Launcher Builder included
  • Platforms Windows, macOS, Linux
  • Sales commission 0%
  • Credit card not required