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NEODUEL: Backpack Monsters

NEODUEL: Backpack Monsters

NEODUEL: Backpack Monsters is an inventory auto-battler with a monster-trainer twist! Collect Cosmions and items, and strategically manage your backpack to create unbeatable combos in tactical duels. Rise through the leagues to become the ultimate Cosmion master!

Released Sep 30, 2024 Developer dicehit, Rogue Duck Interactive Publisher Rogue Duck Interactive Platforms Windows · Mac · Linux Resource ManagementRetroRPG1990'sParty-Based RPG
View on Steam ↗ $11.99 (US · as of 2026-09-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-04 · quoted reviews as of 2026-05-13.

81.8%positive435 reviews
Recommended · 0 found this helpful

“I loved the game and was extremely happy about getting on the leaderboards. The board and element combination was really fun to pull off. However, lack of variety made me stop playing because once I've tried a build, I didn't want to do it again. It was just plainly getting…”

— a player, Steam review · 29 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.

34achievements
14.2%median completion
0.4%rarest: Duck of Destiny
92.9% of players 91.4% of players 75.2% of players 51.9% of players 51.6% of players 51.3% of players 33.7% of players 29.2% of players 28.1% of players 26.7% of players 24.0% of players 23.9% of players 23.4% of players 19.0% of players 17.0% of players 16.4% of players 15.2% of players 14.2% of players 14.2% of players 10.7% of players 7.0% of players 6.3% of players 6.1% of players 3.4% of players 2.8% of players 2.7% of players 1.9% of players 1.6% of players 1.4% of players 1.0% of players 0.8% of players 0.7% of players 0.7% of players 0.4% of players 92.9% 0% most earned rarest
Almost everyone has
92.9%Rapid Fire — Have 0.5 second Cooldown in a single Cosmion
91.4%Welcome to Neoduel! — Complete the tutorial run
75.2%Down to the wire — Win a duel in overtime
Rarest badges of honor
0.4%Duck of Destiny — Reach Astral Elo
0.7%High Voltage — Win a medal with only Electric cosmions
0.7%Hoarder of Honors — Earn your 50th Medal

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-08-12. Steam prices vary by region — always confirm your local price on Steam.

$11.99current · sampled 2026-09-26 21:12 UTC
$5.99lowest since tracking began2026-09-08
US11.99 USD
EU11.79 EUR
UK9.99 GBP
Australia17.75 AUD
Canada15.49 CAD
Japan1,000 JPY
Brazil33.99 BRL
China38.00 CNY

Regional prices at last sample, in local currency — Steam sets each region's price independently.

China≈$5.7 Japan Brazil Canada US Australia UK EU≈$13

Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-25). Relative comparison only.

$0 $10 $20 08-12 08-21 08-30 09-08 09-17 09-26

Latest official news

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

Aug 26, 2025
NEODUEL v1.4.0 - Balance & Bug Fix Patch

A quick balance pass focused on outliers at both ends. Also we fixed the reroll button which caused problems for many players. Nerfs Omnicore Cost 12 → 13 Demoncore Cost 12 → 13 Isvasal Cooldown 8 → 1

May 12, 2025
NEODUEL v1.3.0 - Balance Patch & Live Servers

Hey Duelists! NEODUEL Live Servers are Back Online 🎉 WE ARE SO BACK!!! After some issues with our server infrastructure, we had to turn NEODUEL into a single-player game, where the database was local.

May 12, 2025
NEODUEL Live Servers are Back Online 🎉

Hello Duelists! We have great news to share; tl;dr WE ARE SO BACK!!! After some issues with our server infrastructure, we had to turn NEODUEL into a single-player game, where the database was local. A

Jan 16, 2025
[Deprecated] The future of Neoduel: Backpack Monsters

There have been some developments after this post, please check it out. https://store.steampowered.com/news/app/2693940/view/525342544971695923 We will keep this post up as an archive. --- Greetings D

Dec 19, 2024
NeoDuel: Backpack Monsters: The "So much content it should be a remaster" Update

Happy holiday season Duelists!​ We're thrilled to announce the launch of NeoDuel: Backpack Monsters’ the "So much content it should be a remaster" major update. This follows November’s “Swamp” update,

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Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-13.

GenresCasual, RPG, Strategy
Player tagsResource Management · Retro · RPG · 1990's · Party-Based RPG · Board Game · Auto Battler · Inventory Management · Strategy · Turn-Based Tactics · Asynchronous Multiplayer · Turn-Based Strategy (SteamSpy community voting)
FeaturesSingle-player · Multi-player · PvP · Online PvP · Steam Achievements · Steam Trading Cards · Custom Volume Controls · Mouse Only Option
LanguagesEnglish * , Turkish * , Japanese, Korean, Simplified Chinese, Traditional Chinese, French, German, Spanish - Spain, Portuguese - Brazil, Russian *
Achievements34
Official sitehttps://rogueduck.net
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS: Windows 10 or higher Processor: Intel Pentium CPU G860 Memory: 1 GB RAM Graphics: NVIDIA GeForce 840M DirectX: Version 8.0 Network: Broadband Internet connection Storage: 1 GB available space Additional Notes: 64 Bit Only