Mr. Triangle's Adventure
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About Mr. Triangle's Adventure
Mr. Triangle's Adventure is a classic RPG in which Mr. Triangle sets out to protect his home planet from an invading alien. The alien has been conducting experiments on the planet's inhabitants, turning them into mutated vegetables. Mr. Triangle and his friends aim to defeat the self-proclaimed Mastermind of Evil and send the alien menace back where it came from.
Explore the planet
You explore a massive world and learn about its ancient history as you seek the strength to face the alien. Mr. Triangle is joined by Jojo the ape, Gary the magician gator and Marvin the rocket manatee. Each character has vital abilities, so teamwork is central to the journey.
Face the bosses
Boss battles feature intricate patterns that you must figure out to get closer to the Mastermind. The game also includes side content that is developed and made available for free with purchase.
Frequently asked questions
The best price for Mr. Triangle's Adventure is $1.99 at Steam. It is the only shop with an offer that activates in your country.
The minimum requirements for Mr. Triangle's Adventure are: Windows XP, Intel Pentium III, 50 MB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Mr. Triangle's Adventure is a single-player game.
Yes. Valve rates Mr. Triangle's Adventure as Verified on the Steam Deck: it runs well out of the box.
Yes. Mr. Triangle's Adventure is the full base game. You need nothing else to play it.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.











