Comparison

Cold Bed on Route vs Flat Machine

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Cold Bed on Route

Embark on a rogue-lite adventure inspired by a classic sci-fi novel. Pilot a spaceship and manage its weight by strategically discarding items to ensure mission success, all while uncovering a compelling narrative.

Highlights
  • Rogue-lite adventure gameplay
  • Equation-based story mechanics
  • Spaceship weight management
  • Sci-fi narrative
  • Artificial human protagonist
  • Item discarding mechanics
Features
Read full description

"Cold Bed on Route" is an equation-like rogue-lite adventure game. Have you ever heard of "The Cold Equation", the seminal science fiction novel of the 50's by Tom Godwin? A spaceship sails at the edge of its weight, carrying a cargo that could save many people. An unscheduled person stows away on the ship. If the stowaway is not thrown out of the ship, the spacecraft will be overweight and unable to follow its original course, making it impossible to save lives at its destination. However, if the stowaway is thrown out into space, he/she will of course die. Still, considering the number of lives that can be saved, the only way to save as many lives as possible is to kill the stowaways and abandon them... This is the basic structure of "The Cold Equation" and the genre of "equation stories" derived from it. "Cold Bed on Route is inspired by "The Cold Equation" and its basic flow is in line with the "equation stories". The story takes place on a spaceship drifting in the cold space - the ship, which looks more like a plant seed than a spaceship, is called Final Emergency Boat (FEB), designed to be super small and super light. Because this work is an "equation-like" story, there is a stowaway. The heroine of "The Cold Equation" is a fragile girl who stows away to meet her brother. The girl in "Cold Bed on Route" is different. She is an artificial human called Doggy. Doggy has animal ears to distinguish her from humans. Her body is equipped with flesh, bones, and blood just like humans, but she is far stronger and more intelligent than humans. Work with her to find and dump unwanted items. Then, let's make up for the excess weight caused by having her on board - a weight that is a little, well, a lot heavier than it looks. And let's prove that the universe is not yet completely cold and frigid. Now, pilot, it's your turn.

About

Flat Machine

Control a limbless robot tasked with defending a settlement in a post-apocalyptic world. Engage in simple, timing-based battles against various threats and make choices that influence the game's multiple endings. Discover the mystery of your own identity.

Highlights
  • Simple, timing-based battles
  • Item combination system
  • Respond to various visitors
  • Multiple endings based on choices
  • Daily events and encounters
Features
Read full description

■ Story In the not-so-distant future, a world on the brink of ruin. Awakening in the wasteland is a single robot—with no limbs and no memories. You become the settlement's "gatekeeper," fending off the strange visitors who arrive day after day. Can you protect the settlement through its final days? And what is the true nature of the Flat Machine...? ■ Features [1] Easy, satisfying defense battles—just tap! Tap with the right timing to repel the enemies closing in. Simple to play, yet endlessly strategic through gear and item combinations. Build your own ultimate defense style. [2] Your "choices" change the future—multiple endings Not everyone at the gate is an enemy. Help a struggling mutant, or coldly turn it away? Your decisions steer the story to its ending in this rich sci-fi adventure. [3] Charming pixel art and a wistful apocalyptic world Lovable yet lonely characters brought to life in beautiful retro pixel art. An original atmosphere, deepened by a carefully crafted soundtrack. ■ Perfect for players who love - Pixel-art (retro) games - Dystopian, sci-fi, and apocalyptic worlds - Story-driven indie games - Quick, pick-up-and-play sessions - Tower defense, idle games, and RPGs - Playing free to the end, at your own pace, with no stamina Step into the "everyday apocalypse" woven by an amnesiac gatekeeper robot and the inhabitants of a dying world.

Screenshots

Cold Bed on Route4 screens
Flat Machine4 screens

Verdict

The call

The clearest difference is price: Flat Machine at Free against Cold Bed on Route's $0.99. Flat Machine also leads on review sentiment (94% vs 75%). Cold Bed on Route's advantage is in-app purchases (none vs 4) and ads (none vs shown). On update cadence and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Flat Machine is free to download; Cold Bed on Route costs $0.99 up front. Flat Machine sells 4 one-off in-app purchases. Cold Bed on Route asks for nothing beyond the download.

UpkeepUpdate frequency

Cold Bed on Route ships an update every 9 days, Flat Machine every 5 days. The most recent releases landed on September 14, 2026 and September 28, 2026 respectively.

Scorecard6 real differences · 4 level
Cold Bed on Route versus Flat Machine: the parameters behind the verdict, then further details
ParameterCold Bed on RouteFlat Machine
Price$0.99Free — better
Rating—4.9 (68 ratings) — better
Positive reviews75.0% of reviews93.7% of reviews — better
Number of ratings—68 — better
Update frequencyEvery 9 daysEvery 5 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size159 MB118 MB
Age rating12+12+
DeveloperKyohei Yamadazxima.LLC

Customer experience

Cold Bed on Route

Written reviews20 reviews
Positive75.0%
Neutral5.0%
Negative20.0%

Flat Machine

All ratings68 ratings
Positive97.1%
Neutral2.9%
Negative0.0%
Written reviews63 reviews
Positive93.7%
Neutral4.8%
Negative1.6%

Bugs and requests

Cold Bed on Route

Not enough reviews yet to summarise bugs or requests.

Flat Machine

Reported bugs

4 issues
  • Ads redirect to app store and prevent item rewards
  • Ad BGM continues playing after ad ends
  • Ad BGM persists even after restarting app
  • Agoda ads prevent continuing the game

Requested features

6 requests
  • Add Chinese translation
  • Add Vietnamese translation
  • Add Spanish translation
  • Option for one-time purchase to remove ads
  • More interactions with certain characters (e.g., training robot)
Show 1 more
  • Consider adding taxi or bakery characters in future works

In-app purchases

None

Cold Bed on Route

No in-app purchases

4 purchases

Flat Machine

One-time4
  • AD removal$2.99
  • Donation(S)$3.99
  • Donation(M)$14.99
Show 1 more
  • Donation(L)$34.99

Questions

Is Cold Bed on Route free?
Cold Bed on Route costs $0.99, with no in-app purchases.
Is Flat Machine free?
Flat Machine is free to download, with in-app purchases available.
Do Cold Bed on Route or Flat Machine have ads?
Flat Machine shows ads; Cold Bed on Route does not.
Which is updated more often, Cold Bed on Route or Flat Machine?
Cold Bed on Route ships an update every 9 days, and Flat Machine every 5 days. Most recently, Cold Bed on Route was updated on September 14, 2026 and Flat Machine on September 28, 2026.

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