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UnderMine 2

UnderMine 2

Delve into the dangerous, ever-shifting labyrinth that is the Undermine. Discover, craft, and combine hundreds of unique items. Pair them with an ever-expanding roster of distinct playable characters for a new run every time! Grab a partner and uncover UnderMine 2's secrets together in local co-op.

Released Jul 22, 2025 Developer Thorium Platforms Windows Early AccessAction RoguelikeRogueliteAction-AdventureCo-op
View on Steam ↗ $19.99 (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 2026-09-25.

75.4%positive869 reviews
Recommended · 4 found this helpful

“The game is a direct upgrade from the original, featuring new content and lore to further the story of undermine. I urge returning players to give it a try, as well as players new to the games, as it is very enjoyable for all types of players.”

— a player, Steam review · 5 hrs played
Recommended · 3 found this helpful

“It's a lot of fun, and pretty good at being a sequel (the mechanics are drastically expanded beyond the original Undermine, but the old core gameplay loop is still basically intact in there, it's just not the only thing going on anymore). You can definitely feel the Early Access…”

— a player, Steam review · 80 hrs played
Not recommended · 8 found this helpful

“As a huge fan of Undermine 1. I was so excited to play Undermine 2 with my friends, but having Split Screen for Co-Op ruined it for me. I wish there was a way to play with online co-op that wasn't split screen.”

— a player, Steam review · 1 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-08 via SteamCharts.

823all-time peak
0 250 500 2026 220 avg · Aug 2025

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.

56achievements
23.4%median completion
0.1%rarest: Royal Archivist
81.7% of players 79.8% of players 63.7% of players 62.6% of players 61.8% of players 57.8% of players 57.5% of players 55.0% of players 54.1% of players 54.1% of players 50.3% of players 48.3% of players 47.4% of players 47.4% of players 42.6% of players 42.2% of players 41.5% of players 40.7% of players 35.3% of players 34.0% of players 33.2% of players 32.8% of players 31.0% of players 28.2% of players 26.9% of players 26.3% of players 25.6% of players 24.0% of players 23.4% of players 21.9% of players 21.7% of players 20.8% of players 18.8% of players 16.5% of players 15.5% of players 15.1% of players 15.1% of players 14.6% of players 14.1% of players 13.4% of players 12.6% of players 12.1% of players 11.9% of players 10.1% of players 9.5% of players 8.9% of players 7.6% of players 5.0% of players 4.6% of players 4.3% of players 2.1% of players 1.2% of players 1.1% of players 1.1% of players 0.1% of players 0.1% of players 81.7% 0% most earned rarest
Almost everyone has
81.7%Hazardous Materials — Entered the Royal Laboratories
79.8%Exterminated — Defeated Selt, Sand Hollow Monarch
63.7%The Hard Way — Entered the Delvemore Dungeon
Rarest badges of honor
0.1%Royal Archivist — Gild every Relic and Arcana in the Journal
0.1%Master Zoologist — See every enemy in the Bestiary
1.1%Treasure on Demand — Captured a Mimic of any type with the Master Mondo

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-09-26. Steam prices vary by region — always confirm your local price on Steam.

$19.99current · sampled 2026-09-26 21:12 UTC
$19.99lowest since tracking began2026-09-26
US19.99 USD
EU19.50 EUR
UK16.75 GBP
Australia29.50 AUD
Canada25.99 CAD
Japan2,300 JPY
Brazil59.99 BRL
China76.00 CNY

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

China≈$11 Brazil Japan Canada US Australia UK EU≈$22

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

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 11, 2026
0.8.0 | Demon Rivals Update

Both Sho’guul and Order can be encountered on your run and offer relics of tremendous power for a hefty price. Pay close attention to your Tendency if you wish to meet them. Sho’guul, Opulent Demon Ra

Aug 06, 2026
0.8.0 | Demon Rivals Update Preview

UnderMine 2's fifth major update is nearly here! Sho'guul returns to UnderMine 2 in 0.8.0 Demon Rivals, but this time he isn't alone. His sister Order vies for your favor and offers her own legendary

Jun 15, 2026
0.7.5 | Lunar Magic Update

New Content Lunar Sorceress Minerva Mineva, a powerful sorceress from the Lunarum, comes to the Undermine! After making a startling discovery deep within the Sanctum, she succumbs to a potent curse an

May 29, 2026
Spring Newsletter

technically spring and with it, comes the spring newsletter. We've been busy in the first half of the year, releasing two major updates. In case you missed them, The Roost added Familiars, and Duskfal

May 01, 2026
0.7.0 | Duskfall Update

Welcome to 0.7.0 Duskfall! This is UnderMine 2's biggest update yet. Discuss these notes with other players and the developers on Discord ! The Duskfall The goblins have been busy! We’ve added a new s

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-25.

GenresAction, Adventure, Indie, RPG, Early Access
Player tagsEarly Access · Action Roguelike · Roguelite · Action-Adventure · Co-op · Roguelike · Pixel Graphics · Action · Adventure · Dungeon Crawler · 2D · Lore-Rich (Steam store community voting)
FeaturesSingle-player · Multi-player · Co-op · Shared/Split Screen Co-op · Shared/Split Screen · Steam Achievements · Full controller support · Steam Workshop
LanguagesEnglish, French, Italian, German, Japanese, Korean, Portuguese - Brazil, Russian, Simplified Chinese, Spanish - Latin America, Ukrainian
ControllerFull support
Achievements56
Official sitehttps://www.undermine2.game
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS: Windows 10+ Processor: Dual Core 2.4 GHz Memory: 4 GB RAM Graphics: 2 GB VRAM / DirectX 11+ support Storage: 1 GB available space