PC $4.99 Region US
Games Action Sigma Impact
Content rating unavailable
Action · John Bishop

Sigma Impact

Sigma Impact
Content rating unavailable
Steam Deck Verified Windows
Very Positive · 97% of 102
DeveloperJohn Bishop
GenreAction
ControllerFull
Wait Chip's verdict · US updated 3 days ago

Good game, but it sits 100% of the way from its all-time low to full price. It drops harder in seasonal sales. Patience pays.

Why this verdict
Price position between all-time low and full price 100%
All-time low $2.24 · 11d ago
Player reviews 97% positive of 102
Quality score 97/100
Value score 0/100

Offers

Accepted regional prices from official stores

Official stores (1)
steam
checked 3 days ago Best price
steam, Official, $4.99
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About this game

What this game is, in the developer's words

A physics-based 2D action roguelite set in a dungeon of glass. Master intense combat, be immersed in captivating visuals with adaptive music and sound design tailored to your gameplay.

Unleash Your Power in the Explosive World of Sigma Impact!

Welcome to Sigma Impact, a physics-based combat game that challenges your skill, timing, and creativity. Master momentum and positioning to execute devastating attacks with a variety of unique weapons, each with its own special abilities.

Embark on a rewarding journey as you conquer room after room of the glass dungeon, unlocking powerful weapons and perks along the way. Choose from the mighty Hammer, the explosive Mace, the precise Spike, the versatile Jet Hammer, the innovative Yo-yo, the healing Hexagon, the deadly Lance, and the defensive Claw. Customize your playstyle and adapt to overcome the enemies and obstacles along your path to the final boss.

Sigma Impact offers an immersive experience with dynamic physics, strategic combat, and captivating visuals. Beginners and veterans alike will find a challenge in this adrenaline-pumping "pick up and play" indie gem. Sharpen your skills in the training room, perfect your weapon of choice, and brave the depths of the glass dungeon in your quest for mastery and high scores.

Key Features:

  • Unique Physics-Based Combat: Master the art of swinging your hammer with momentum, and experience the intensity of strategic, physics-driven battles.
  • High Replay Value: Embark on countless runs with procedurally generated levels, a diverse array of weapons, and exciting perks that will keep you coming back for more.
  • Local Co-op and PvP Modes: Team up with friends for cooperative play or challenge them in exhilarating player-vs-player battles.
  • Immersive Dynamic Soundtrack: Get lost in the game's dynamic audio experience, with a real-time composed soundtrack that adapts and reacts to your every move, enhancing the intensity and excitement.
  • Stunning Visuals: Dive into Sigma Impact's vibrant world, brought to life with striking graphics and a captivating aesthetic.
  • Challenge and Mastery: Overcome a steep learning curve, unlock new modes and weapons, and push your skills to the limit in this "easy to learn, hard to master" experience.

    Master the Arsenal: Unleash the Power of Physics-Based Weapons!

    • Hexagon: Stun and heal with charged strikes or launch ranged flashbangs to control the battlefield.
    • Hammer: Unleash devastating charged impacts and master the timing for maximum damage.
    • Mace: Cause spectacular explosions with charged melee attacks or lob it like a grenade for massive blasts.
    • Spike: Take aim and fire explosive bullets for precision strikes, scoring bullseyes for extra damage.
    • Jet Hammer: Spin with jet engines and launch powerful jet charges for remote-controlled devastation.
    • Yoyo: Fling it out and control its speed, unleash charged explosions for temporary damage buffs.
    • Lance: Perform precise thrusts and use charged lasers for long-range precision or explosive lunging strikes.
    • Claw: Defend with a shield-like shape, deliver shield bashes, and boost melee strikes with charged lasers.

    Players' Verdict: Unleashing Praise for Sigma Impact!

    Sigma Impact has been receiving overwhelmingly positive reviews from players who appreciate its satisfying physics-based gameplay, engaging mechanics, unique combat, and fantastic visuals. The game has been compared to classics like Hammerfight, with many players noting the high skill ceiling and replay value. The controls may be challenging at first, but players find them rewarding once mastered. The game offers single-player, local co-op, and PvP modes, catering to various preferences. The dynamic music and sound design are also praised, enhancing the immersive gameplay experience.

    While the game is considered short, players find it well worth the price and express hope for additional content in the future, such as more levels, enemies, and weapons. The developer's dedication and responsiveness to feedback is also appreciated, and the game is highly recommended for its price. Overall, Sigma Impact is seen as a polished, satisfying, and addictive indie gem that provides hours of fun.

    Pros:
    • Satisfying physics-based gameplay
    • Engaging mechanics and unique combat
    • High skill ceiling and replay value
    • Fantastic visuals and sound design
    • Single-player, local co-op, and PvP modes
    • Responsive and dedicated developer
    • Great value for the price

    Cons:
    • Short game length
    • Limited content (levels, enemies, weapons)
    • Challenging controls may have a learning curve

Media

Trailers and screenshots straight from the store page

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Latest news

Recent updates from the game's own feeds

Price intelligence

Accepted price history and the lows that matter

Historical lows
All-time low ATL $2.24 2026-07-03
3-month low $2.24
12-month low $2.24
Current $4.99
Price events From the accepted price history · updates automatically
Jul 9, 2026
Sale ended · back to $4.99
Jul 3, 2026
New all-time low $2.24

Sigma Impact price history and best deals

Sigma Impact for PC currently sells from $4.99 at authorized stores. Its all-time low is $2.24, set on 2026-07-03.

Frequently asked questions

Answered from this game's own price and edition data

Should I buy Sigma Impact now or wait?
Our verdict is wait. At 100% of the way to full price, it usually drops harder in seasonal sales, so patience tends to pay.
Is $4.99 a good price for Sigma Impact?
$4.99 sits 100% of the way from the all-time low of $2.24 to the full price. It has been cheaper before, so there is room to wait.
Where can I buy Sigma Impact?
Sigma Impact is tracked at steam. We only list authorized stores here and always link out with a clean outbound link.
Scores
Steam reviews Very Positive · 97%
97% positive of 102
Media (12)
Tech
Steam DeckVerified
SteamOSSupported
ControllerFull
Requirements
System requirements platform
Minimum
Minimum:
  • OS *: Windows 7, 8 or 10 x64
  • Processor: Intel or AMD Dual Core CPU
  • Memory: 512 MB RAM
  • Graphics: (Integrated): Intel HD Graphics or AMD (formerly ATI) Radeon HD Graphics (Discrete): Nvidia GeForce 9600 GT or AMD Radeon HD 2400
  • DirectX: Version 9.0
  • Storage: 64 MB available space
Achievements (16)
ach_longThrow 53.3%
ach_bossDefeated 44.6%
ach_sigmaSpeed 34.4%
ach_hammerWin 26.1%
ach_maceWin 25.0%
ach_spikeWin 21.2%
ach_newGamePlus5 12.7%
ach_jetHammerWin 12.3%
Facts
DeveloperJohn Bishop
PublisherJohn Bishop
GenresAction · Indie
ModesMulti-player · Single-player · Co-op
Links
Ratings
dejus10
igrs13
steam_germany12
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