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Watch trailer on Steam ↗DELTARIS
XEXTRA JAPAN · Published by XEXTRA JAPAN
3 user reviews — 67% positive (3 reviews)
Last updated 28 Sept 2026
A revolutionary block puzzle game from Japan! For those who have already mastered TETRIS, “DELTARIS” brings a new twist — an exciting block puzzle RPG that combines stacking, erasing, and creation. Play alone or with friends in story, endless, puzzle, and two-player battle modes!
£5.29
Lowest price we've ever recorded
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Price history
Action, Indie, Casual · 2025 · More £5 - £15 games
Experience the thrill of stacking, erasing, and creating as DELTARIS, an innovative block puzzle RPG by XEXTRA JAPAN. Dive into solo or multiplayer modes to explore endless puzzles and battles.
About this game
🏆 In One Line:
“Beyond Tetris — discover the joy of creation.”
Stack, Erase, and Create.
The history of block puzzles changes here and now.
Developed single-handedly by Japanese creator Nakamura, DELTARIS is nothing less than a revolution in falling-block puzzle games.
【About the Game】
DELTARIS redefines the classic falling-block genre as a brand-new style of puzzle RPG.
“Already mastered TETRIS?”
Then it’s time to experience DELTA FORCE — a groundbreaking system where placing blocks in special shapes automatically “creates” new ones that fill the gaps.
Every flash of insight can trigger massive chains and unleash thrilling attacks on your foes.
Forge a new chapter in puzzle history — through creation itself.
【Key Features】
● The Innovative “Delta Force” System
This isn’t just stacking blocks. By intentionally forming triangular gaps, new blocks called Delta Forces are automatically generated!
Plan, create, and dominate the field with strategic chain reactions unlike anything you’ve played before.
● Puzzle Meets RPG in Dynamic Battles
Clearing lines that include Delta Forces activates Delta Attacks, dealing damage to your enemies!
Face off against fairy-tale and myth-inspired foes, each with unique HP and abilities.
It’s not just about score — it’s about defeating enemies and progressing through stages for a true sense of accomplishment.
● Massive Variety of Game Modes
Enjoy a wealth of content: a full Story Mode, an Endless Mode that tests your limits,
over 24 Mission challenges, a logical Puzzle Mode, and exciting 2-Player Versus Battles for local play.
● An Epic Story to Save the World of Tales
In the sanctuary of dreams known as Castle Mugen, all stories are born.
But now, they are being corrupted by the mysterious “Dark Ink,” turning beloved heroes into demons.
Take on the role of Delru, the girl who inherited the Delta Force, and embark on an adventure with General Mikage the Cat to restore the purity of these lost tales.
【Game Modes】
Story Mode – Experience a 12-stage narrative as Delru and uncover the truth behind the Dark Ink.
Endless Mode – Battle an endless wave of enemies and chase high scores with or without items.
Mission Mode – Complete diverse challenges that test both speed and strategy.
Puzzle Mode – Solve cleverly designed stages using limited blocks and moves.
Lesson Mode – Learn the basics and advanced Delta Force techniques with Delru’s guidance.
2P Versus Mode – Compete locally with a friend using unique “Salvation Items” for each character.
Bonus Mode – Unlock the ultimate challenge reserved only for true masters of every mode.
System Requirements
Will my PC run this? →Minimum
- OS: Windows 10 or newer
- Processor: Intel(R)Core(TM)i5-7300U CPU@2.60GHz
- Memory: 8 GB RAM
- Graphics: Intel(R) HD Graphics 620
- Storage: 1 GB available space
- Additional Notes: A display resolution of 1920 x 1080 or higher is required.
Supported Languages
Latest news
AnnouncementsOfficial
“DELTARIS” – Out Now on Steam as of December 5, 2025!
“A Triangular Revolution” Carrying the Spirit of TetrisA New Puzzle RPG Created by a Solo Pharmacist Developer“DELTARIS” – Out Now on Steam as of December 5, 2025!XEXTRA JAPAN (Headquarters: Japan / Developer & Representative: Nakamura) is pleased to announce that the new falling-block puzzle RPG “DELTARIS”, featuring unique triangle-shaped blocks, is now officially available on Steam for PC as of Friday, December 5, 2025.This title is a completely original indie game developed almost entirely by a single creator, who also works as a pharmacist in his day job. Programming, graphics, scenario, and game design have all been handled by Nakamura alone.A passionate fan of the Game Boy and Famicom versions of “Tetris”, Nakamura set out to create a kind of “spiritual successor” with his own hands. After around half a year of development, this lifelong dream has finally taken shape as DELTARIS.A Falling-Block Puzzle About “Creating” with TrianglesStack, clear, and generate powerful “Delta Force” blocksThe most distinctive feature of DELTARIS is its entirely new falling-block puzzle system built around triangle-shaped pieces.Players do more than simply align blocks to clear lines. By intentionally creating triangular gaps on the board, they can generate a special auto-created block called “Delta Force.”When a line containing Delta Force is cleared, a powerful special attack called “Delta Attack” is unleashed, dealing damage to enemies. Because board management and battles progress at the same time, players can enjoy a brand-new style of falling-block gameplay that combines the exhilaration and tension of “creating in order to attack.”Falling-Block Puzzle × RPGA new kind of puzzle RPG where story and battle are fusedDELTARIS is more than a simple puzzle game where players compete for high scores. Enemy characters each have their own HP, and your puzzle actions themselves become your means of attack, creating a uniquely RPG-like battle experience.The story follows Delru, a you...Read full article on Community Announcements (miffycolor)
