Trigonarium

Trigonarium

Kimmo Lahtinen · 2015 · Local Co-Op, Co-op Campaign, Twin Stick Shooter, Colorful, Top-Down Shooter

PC
Very Positive93% · 72
Best price
$0.99
lowest tracked $0.29
Steam Buy at Steam

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Steam
Steam
Standard Edition · Steam
$0.99
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Screenshots

About Trigonarium

Trigonarium is a hardcore twin-stick shooter for fans of challenging arcade gaming. Fight your way through multitudes of enemy formations in constantly shifting battle arenas to face the colossal level bosses.
  • Original campaign, a 3 world arcade mode to introduce you to the world of Trigonarium
  • Ultimate campaign, a 5 world super intense experience to push your skills to the limit
  • Challenge modes for quick play sessions
  • Local 2 player cooperative play available for all modes

Note: The game can be played with keyboard or mouse/keyboard combination, but a controller is highly recommeded!

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Not recommended May 9, 2026
Pretty slow and boring. Even though the price is low, it's not worth it.
1 found this helpful
Recommended Dec 24, 2025
Found this little gem after buying Sektori which is the latest version. Like a lot of games I had no idea this even existed otherwise I would have picked it up already. Just got it for 44p off steam marketplace, and the game is awesome. Graphics are basic but the game play is just a good as any twin stick shooter. I found another gem!
1 found this helpful
Recommended Jun 2, 2026
To me this is basically the "better version of" Sektori, despite being its prequel. Everything Sektori does well this game already did well, without the noise the sequel introduces. It also kind-of demonstrates both games really could use a few more iterations on their respective designs. The main novelty is the every changing map, which works smoothly and positively affects the gameplay. The main issue I take with Trigonarium is the poor frame to frame readability. It is however, disappointingly, better than in Sektori. It's a decent game and arguably better than its predecessor in many ways.
Recommended Apr 12, 2026
I've probably played geometry wars for hundreds of hours over the years, its one of my favorite games. I just recently stumbled across this gem. Holy smokes, i can tell after 5 minutes, I'm gonna be playing this for many years. Please support this developer, this game is way cheaper than it should be!!
Recommended Mar 7, 2026
This game is solid. Practically free. And it deserves a lot more love than it currently has on here.
Recommended Jan 5, 2026
this game provides the missing piece Geometry Wars was always missing, a dynamic area! provides a more focus shmup like level design Cant wait to play the spiritual sequal top tier music as well

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