Steam Playtests
RIMSTRIKE: Incremental Defense

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RIMSTRIKE: Incremental Defense playtest

by Trax

Defend the rim! Your rocket glides along a glowing oval rail and fires on its own - you just aim. Shred endless swarms pouring out of the wormhole, collect shards, grow a huge upgrade tree and break through sector after sector of pure neon wire geometry.

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Anyone with a Steam account can join, and it's free.

Access
Instant
On playtest since
Oct 31, 2026
Planned release
Coming soon
Developer
Trax
Platforms
Windows
Players
Single-player
Languages
English, Japanese, Korean, Simplified Chinese

How to join the RIMSTRIKE: Incremental Defense playtest

  1. Open the game's Steam page with the Join playtest button. Sign in to Steam if it asks.
  2. Use the RIMSTRIKE: Incremental Defense playtest signup there. You're in straight away, with nothing to pay.
  3. The playtest shows up in your Steam library, ready to install and play.

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About RIMSTRIKE: Incremental Defense

Hold the rim!

RIMSTRIKE is a fast arcade shooter in razor-sharp neon vector graphics. Enemies pour out of a wormhole in the center without pause and race toward the edge. Your rocket rides the oval rail around them, always heading to the point closest to your cursor, and fires automatically.

All you have to do is aim and survive.

Lives. Game over. Not here.

Each run lasts until your energy runs out - and every shard you collect is yours to keep. Spend them in a big upgrade tree, come back stronger and push deeper. Twenty sectors stand between you and the final decision: collapse the wormhole.

FEATURES

  • Simple to play: aim with the mouse, the rocket moves and shoots by itself
  • A constant stream of enemies, no waves and no breaks: hunters, shielded squares, gunners, swarms, lancers and a boss guarding every sector
  • Charge the sector ring, beat the boss and unlock the next level - 20 sectors in all
  • LASER plus a SPREAD gun that fires alongside it, critical salvos, chain lightning and a combat drone (or two) lobbing grenades at your side
  • One-click RAIL SURGE: lightning charges the whole rail, hurls enemies back to the centre and slows time - paid with your energy
  • Hold the other button to ANCHOR: the rocket stays put and just turns to fire
  • A large upgrade tree with over 60 nodes: damage, fire rate, energy, drive, surge, drone, shard salvage and more
  • Every level plays the same each time - learn it, master it and replay cleared sectors for extra shards
  • A real ending: collapse the wormhole and reach GAME COMPLETED - then keep playing or start a new run
  • Glowing wire geometry on pure black with bloom and CRT effects
  • Mouse only: no keyboard, no controller - one hand, two buttons

From the game's Steam page.

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