Thank you for your interest in Cosmo Dreamer.

We are pleased to announce that Outside
new shump "REDNEG ALLSTARS SWING-BY EDITION".
officially released.

Click here for store page

Please check out our new game.
We look forward to your continued patronage of Outside.

Thank you for playing Cosmo Dreamer.
We are pleased to announce the Ver. 2.23 update of Cosmo Dreamer.

In this version, we have made the following changes.

・Implementation of functionality to automatically change button type with controller input.
・Fixed a problem that “Scores have been sent to the leaderboard.” was displayed in an inappropriate state.

Thank you for your interest in Cosmo Dreamer.

We are pleased to announce that Outside will be releasing
released a Demo version of our new STG "REDNEG ALLSTARS SWING-BY EDITION".
Demo version of the new STG "REDNEG ALLSTARS SWING-BY EDITION" has been released.

Click here to go to the store page.

This game is a free game "REDNEG ALLSTARS".
The game is a remake of the free game "REDNEG ALLSTARS" with a completely new system and graphics.

It is scheduled to be released by the end of 2024.
If you are interested in this game, please register your wish list.

English text display is not included in the Demo version. It will be implemented in the full version.

Thank you for playing Cosmo Dreamer.
We are pleased to announce the Ver. 2.22 update of Cosmo Dreamer.

In this version, we have made the following changes.

・Added a specification that a demo play is played after a certain amount of time on the title screen.
　The opening and some demo plays are repeated after each playback.
・Added "STEAM DECK" button type to key configurations.
　Caution! After the update, the game may load with different settings than before.
・Long pressing the directional buttons will now automatically send items.
・Added a screen to confirm whether to send scores to the online ranking when a specific game mode is completed.
・Changed the selection method of ranking.
・When changing the language of configuration, language data is loaded when the screen is switched.
・Fixed a problem that the game speed may become unstable at the start of a game.
・Fixed a problem that the language name on the option screen is not displayed.
・Fixed some other problems.

Thank you for playing Cosmo Dreamer.
We are pleased to announce the Ver. 2.21 update of Cosmo Dreamer.

In this version, we have made the following changes.

・Fixed key prompts during replay playback.

Thank you for playing Cosmo Dreamer.
We are pleased to announce the Ver. 2.20 update of Cosmo Dreamer.

In this version, we have made the following changes.

English expressions have been changed to be the same as the Nintendo Switch version.
Other minor changes.

Thank you for playing Cosmo Dreamer.
We are pleased to announce the Ver. 2.11 update of Cosmo Dreamer.

In this version, we have made the following changes.

Correction of text
Changed some words in the manual.
Fixed a problem that reproduced the input of the fast-forward button when replaying replays.
Fixed the screen switching effect in some stages of the practice mode.

Thank you for playing Cosmo Dreamer.

We have just released Ver2.10 update mainly adding "Steam Achievements", "Ranking" and "Practice Mode".
The Ver2.10BETA version that was recently released to the public is no longer available.
Thank you for participating in the beta test.


The following changes have been made in this version.

Support for SteamAPI
Support for Steam Achievements
Addition of a "Ranking" screen.
Added a process to send results to the leaderboard on the results screen after completing trials and extras.
Added Practice Mode (Practice mode is available after clearing Stage 1)
(Practice mode is unlocked after clearing stage 1)
Added "Button Type" and "Keyboard Config" to Key Configuration.
New key prompts for each game screen.
Changed the graphics of the startup screen.
Revised some parts of the manual.
The ending credits have been reorganized.
Changed so that all difficulties up to Expert are unlocked from the initial state.
Changed so that players can select Counter Mode in Trial Mode after unlocking Counter Mode.
Changed some conditions for unlocking hidden elements.
(To unlock Nightmare difficulty, players must now "clear up to stage 8 as an expert" and "clear the trial as an expert.)
Lighter graphics output processing.
Fixed some other bugs.

Acquired achievements are sent to the Steam server upon startup.
Unlike Like Dreamer, Cosmo Dreamer cannot save replays of practice mode.

Cosmo Dreamer has been updated to Ver. 2.03.
The following modifications were made.

・Changed the format of BGM files. We expect to improve the problem that loop playback does not work properly in some environments.