Compare RETSNOM prices across trusted key stores and find the best deal. Developed by Somi. Published by Zero Rock Entertainment. Released on 7/23/2015. Available on PC, Mac. Genres: Action, Indie.

A solo-dev puzzle platformer that folds the level like paper to tell a father's desperate story. Genuinely original, stubbornly difficult, and easy to overlook.

I have a soft spot for the games nobody covers, and RETSNOM is exactly that kind of quiet, strange thing. Solo Korean developer Somi built the entire experience while working a day job as a lawyer, carving out two or three hours each night to make something he couldn't find anywhere else. That context matters, because the game itself feels handmade in the best and the most frustrating senses of the word. The central mechanic is a genuine novelty. You carry a mirror that lets you flip a section of the level around you, left to right, repositioning walls, platforms, and gaps on the fly. A wall blocking your path? Flip it behind you. An empty pit? Fold a platform across it. The game is structured across five worlds, and each introduces a new mirror property: the first world handles horizontal flips, the second causes flipped blocks to fade like a fogged mirror in rain, the third brings concave mirrors that invert the world vertically, and later chapters stack these properties in increasingly demanding combinations. There are also three hidden stages that bend the rules further. The color-coded grid overlay that previews what will move helps enormously, though on larger, busier levels it can turn the screen into a maze of pink and blue tiles that requires a moment of stillness before anything makes sense. The puzzle half of the game, when it clicks, genuinely earns that click. Reasoning your way to a solution in a handful of flips, or spotting that a jump mid-air can reposition a block you couldn't reach from the ground, produces the specific satisfaction that only spatial puzzle design can. The platforming half is wobblier. Mid-air flips that accidentally catch you inside a repositioned wall, controls that feel slightly imprecise under pressure, and a difficulty curve that steepens abruptly around world two have frustrated plenty of players who gave up before the story resolved. There is a dedicated suicide-reset button, which is either a considered design acknowledgment that you will dig yourself into impossible positions, or a quiet admission that some puzzle states are unrecoverable without it. Possibly both. The atmosphere deserves its due. Somi used music as a narrative language throughout: the opening chapters carry cello and piano in a register of exhausted grief, and the tone shifts as the father's circumstances shift. It is a small, instrumental score, not a showpiece, but it stays in register with the story in a way that bigger productions sometimes fail to manage. The pixel art is minimal and does not try to compensate for its budget. What it does do is keep the visual read of each level clear enough that the mechanic can breathe. The story is a zombie-cure premise worn lightly; what lingers is the moral texture under the surface, a few notes and exchanges that suggest consequences beyond the platforming. The title itself is monster spelled backwards, a clue, not a spoiler. Who is this for? Puzzle-platformer devotees who have already filed through the obvious genre landmarks and want something smaller and odder. Players who find a comparison to FEZ reasonable, at least in the sense that the world-manipulation feels similarly authored and particular. Players who will not resent a steep climb before the game stops fighting them. Casual action fans or anyone expecting the platforming to carry the experience should probably look elsewhere. Kai, Scout Team

RETSNOM

RETSNOM

Jul 23, 2015SomiZero Rock Entertainment
GamerScout Says

A solo-dev puzzle platformer that folds the level like paper to tell a father's desperate story. Genuinely original, stubbornly difficult, and easy to overlook.

PCMac
Best Price Available
€0.89
at Kinguin
Lowest tracked: €0.89
Track this price

GamerScout Verdict

Worth it for dedicated puzzle-platformer fans with patience for a steep curve; too obtuse and uneven for casual play.

Compare Prices(5 stores)

KinguinBest price
StandardGlobalSteam KeyKey
€0.89
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€1.04-79%
Priced in EUR by the store
Buy
StandardEurope (EU)Steam KeyKey
€1.36
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€1.41-18%
Priced in EUR by the store
Buy
StandardEurope (EU)Steam KeyKey
€2.00
Priced in EUR by the store
Buy
StandardEurope (EU)Steam KeyKey
€4.99
Priced in EUR by the store
Buy

Every store in this table quotes us in euros, so the EUR figure is the price the seller actually set, not our arithmetic — which is why EUR is also the currency we rank in. We only list an offer here when the store gives us its price in euros, so nothing in this table is a number we invented.

Pick USD, PLN, GBP, CAD or AUD in the header and we convert from EUR at the European Central Bank reference rate — converted amounts are prefixed with ~. Your bank or the store may apply a different rate at checkout. We never hide offers based on where you are: everyone sees this whole table.

We may earn a commission when you buy games through links on this page — at no extra cost to you. It never affects our rankings or verdicts.

Price History

Lowest tracked
€0.8924 Aug 2026
Current best
€0.89
Lowest since we started tracking
Keyshops
€0.87€0.95€1.03€1.117 Jun30 Jun23 Jul15 Aug7 Sept
7 Jun — 7 Sept
Create alert

Screenshots & Media

About RETSNOM

I have a soft spot for the games nobody covers, and RETSNOM is exactly that kind of quiet, strange thing. Solo Korean developer Somi built the entire experience while working a day job as a lawyer, carving out two or three hours each night to make something he couldn't find anywhere else. That context matters, because the game itself feels handmade in the best and the most frustrating senses of the word. The central mechanic is a genuine novelty. You carry a mirror that lets you flip a section of the level around you, left to right, repositioning walls, platforms, and gaps on the fly. A wall blocking your path? Flip it behind you. An empty pit? Fold a platform across it. The game is structured across five worlds, and each introduces a new mirror property: the first world handles horizontal flips, the second causes flipped blocks to fade like a fogged mirror in rain, the third brings concave mirrors that invert the world vertically, and later chapters stack these properties in increasingly demanding combinations. There are also three hidden stages that bend the rules further. The color-coded grid overlay that previews what will move helps enormously, though on larger, busier levels it can turn the screen into a maze of pink and blue tiles that requires a moment of stillness before anything makes sense. The puzzle half of the game, when it clicks, genuinely earns that click. Reasoning your way to a solution in a handful of flips, or spotting that a jump mid-air can reposition a block you couldn't reach from the ground, produces the specific satisfaction that only spatial puzzle design can. The platforming half is wobblier. Mid-air flips that accidentally catch you inside a repositioned wall, controls that feel slightly imprecise under pressure, and a difficulty curve that steepens abruptly around world two have frustrated plenty of players who gave up before the story resolved. There is a dedicated suicide-reset button, which is either a considered design acknowledgment that you will dig yourself into impossible positions, or a quiet admission that some puzzle states are unrecoverable without it. Possibly both. The atmosphere deserves its due. Somi used music as a narrative language throughout: the opening chapters carry cello and piano in a register of exhausted grief, and the tone shifts as the father's circumstances shift. It is a small, instrumental score, not a showpiece, but it stays in register with the story in a way that bigger productions sometimes fail to manage. The pixel art is minimal and does not try to compensate for its budget. What it does do is keep the visual read of each level clear enough that the mechanic can breathe. The story is a zombie-cure premise worn lightly; what lingers is the moral texture under the surface, a few notes and exchanges that suggest consequences beyond the platforming. The title itself is monster spelled backwards, a clue, not a spoiler. Who is this for? Puzzle-platformer devotees who have already filed through the obvious genre landmarks and want something smaller and odder. Players who find a comparison to FEZ reasonable, at least in the sense that the world-manipulation feels similarly authored and particular. Players who will not resent a steep climb before the game stops fighting them. Casual action fans or anyone expecting the platforming to carry the experience should probably look elsewhere.

Kai
Kai · Scout Team

Indie & narrative

Tags

singleplayerachievementscontroller-supporttrading-cardscloud-savestier:sub-5Mirror MechanicLevel ManipulationSpatial PuzzlesSolo DeveloperDark AtmosphereStage-BasedHidden StagesHigh DifficultyNarrative Puzzle

System Requirements

Minimum

OS
Windows XP/Vista/7/8 or above
Memory
2 GB RAM
Storage
270 MB available space
Graphics
Supports 1280 x 720 resolution
Processor
1.6 GHz

Keep exploring

Community Discussion

Be the first to comment on RETSNOM.

Reviews & Ratings

No ratings available

Game Info

Developer
Somi
Publisher
Zero Rock Entertainment
Release Date
Jul 23, 2015

Price Alert

Get notified when the price drops below your target!

Create Alert
Best price€0.89
See offer

Across the 24,365 games we track, a verified key was cheaper than the official store 90% of the time. See the method and the full numbers in our game price report.

No card? Pay another way

Top up your Steam Wallet or buy crypto with any card — instant delivery, no bank account needed.

More from Somi

Buy smarter: helpful guides

Frequently asked questions about RETSNOM

How much does RETSNOM cost?

As of 7 September 2026, the cheapest in-stock offer for RETSNOM is €0.89 at Kinguin, out of 6 live offers we track across verified key stores. Prices change daily — the table on this page is refreshed continuously.

Where can I buy RETSNOM cheapest?

The lowest in-stock price we track for RETSNOM is €0.89 at Kinguin (7 September 2026). We compare 6 live offers from verified key stores — the full table with every store and its trust score is on this page.

What platforms is RETSNOM available on?

RETSNOM is available on PC, Mac.

When was RETSNOM released?

RETSNOM was released on 23 July 2015.

Who developed RETSNOM?

RETSNOM was developed by Somi and published by Zero Rock Entertainment.