Steam Playtests
OnSlaught

Open now · By request

OnSlaught playtest

by ChainShot Games

OnSlaught is a combat driven space game, but plays like a classic boomer shooter! Rip through fleets of horrifying alien ships and obliterate destructible environments as you shoot, grapple, and bring carnage to your creators.

It's free to ask. The developer chooses who gets in.

Access
By request
On playtest since
Sep 12, 2026
Planned release
Coming soon
Developer
ChainShot Games
Platforms
Windows
Players
Single-player
Languages
English

How to join the OnSlaught playtest

  1. Open the game's Steam page with the Request access button. Sign in to Steam if it asks.
  2. Request access to the OnSlaught playtest there. It's free and doesn't commit you to anything.
  3. The developer lets players in, often in batches, so it can take a while. Steam emails you when you're in, and the playtest appears in your library.

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About OnSlaught

  • You are alone in space and an entire alien civilization wants you dead.
  • You'll face many enemies, each demanding a unique weapon and strategy to defeat.
  • Fight flesh abominations, fly through black holes, and rip through fleets of alien ships.
  • Almost every asteroid in OnSlaught is fully destructible.
  • Use your grappling hook to fling barrels, asteroids, and space junk at you enemies alongside your 9 other weapons.
  • Your humanity has been stripped away. Only agony remains.
  • Boil their blood in the vacuum of space.

From the game's Steam page.