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REDNEG ALLSTARS SWING-BY EDITION

REDNEG ALLSTARS SWING-BY EDITION

Cosmo Dreamer Like Dreamer "Outside" is a fantastical and comical boss-rush bullet-hell shooting game remade from a free game. Both beginners and experts can enjoy the intense boss rush.

Released Jun 20, 2024 Developer あうとさいど Platforms Windows ActionShooterShoot 'Em Up2D PlatformerBullet Hell
View on Steam ↗ $10.99 (US · as of 2026-05-16)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.

100.0%positive90 reviews
Recommended · 0 found this helpful

“Another game I judged unfairly when I first played it. A boss rush that slowly opens up as you play. Contains the same kind of gameplay as Outside's other games... So if you love Cosmo & Like Dreamer, you LOVE this too! Highly recommended!”

— a player, Steam review · 9 hrs played
Read more reviews ↗

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

30achievements
31.4%median completion
2.8%rarest: I can't believe we're here!
92.0% of players 71.6% of players 67.5% of players 66.6% of players 66.0% of players 55.5% of players 52.3% of players 48.7% of players 43.9% of players 41.4% of players 36.6% of players 36.2% of players 34.9% of players 33.4% of players 32.7% of players 31.4% of players 29.8% of players 28.7% of players 27.7% of players 25.0% of players 21.8% of players 19.0% of players 17.9% of players 13.1% of players 7.8% of players 7.1% of players 6.5% of players 5.5% of players 2.9% of players 2.8% of players 92.0% 0% most earned rarest
Almost everyone has
92.0%Score Attacker — Score reaches 1 billion.
71.6%Score Champion — Score reaches 10 billion.
67.5%Clone villainess — I cleared the boss rush with Nitro Gryce.
Rarest badges of honor
2.8%I can't believe we're here! — Hidden achievement
2.9%Astronomical avoidance rate — Hidden achievement
5.5%Transcendental proof — Hidden achievement

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Sep 12, 2025
“REDNEG ALLSTARS SWING-BY EDITION” Ver1.21 Update

Thank you for playing REDNEG ALLSTARS SWING-BY EDITION. We are pleased to announce the Ver1.21 update for the game. In this version, the following changes have been made: ・Adjusted the replay and rank

Sep 11, 2025
“REDNEG ALLSTARS SWING-BY EDITION” Ver1.20 Update

Thank you for playing REDNEG ALLSTARS SWING-BY EDITION. We are pleased to announce the Ver1.20 update for the game. In this version, the following changes have been made: ・Added support for Simplified

Aug 11, 2025
New "Fox Flare Night" Demo Release

We at Outside are excited to announce the release of the demo version of our new STG, Fox Flare Night ! Store Page Here This is Outside’s first side-view shooting game, offering a refreshing, fast-pac

Dec 25, 2024
REDNEG ALLSTARS SWING-BY EDITION Ver1.11 update

Thank you for playing REDNEG ALLSTARS SWING-BY EDITION. We are pleased to announce the Ver. 1.11 update of this game. The following changes have been made in this version. ・Changed the behavior of bos

Dec 05, 2024
REDNEG ALLSTARS SWING-BY EDITION Ver1.10 update

Thank you for playing REDNEG ALLSTARS SWING-BY EDITION. We are pleased to announce the Ver. 1.10 update of this game. The following changes have been made in this version. Each English expression has

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From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.

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Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-26.

GenresAction
Player tagsAction · Shooter · Shoot 'Em Up · 2D Platformer · Bullet Hell · Top-Down Shooter · 2D · Cute · Anime · Colorful · Cartoon · Cartoony (SteamSpy community voting)
FeaturesSingle-player · Steam Achievements · Partial Controller Support · Steam Cloud · Steam Leaderboards · Family Sharing
LanguagesJapanese, English, Simplified Chinese, Traditional Chinese
Achievements30
Official sitehttps://ausorrllrrll.wixsite.com/outside
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS: Windows10 Processor: Intel(R) Core(TM) i5-4210M CPU Memory: 2 GB RAM Graphics: Intel(R) HD Graphics 4300 Storage: 1 GB available space Sound Card: Realtek(R)Audio