Free Underground Games on Steam
Steam currently has 810 Underground games available to download and play. Explore our list of the best free games ranked by popularity and ratings. Data for this list is calculated from reviews and player counts reported directly by Steam and will be updated in real-time. Free Underground game rankings were last updated on 7/13/2025.
Looking for more? Explore other lists such as:
- Best underground games on Steam
- Best underground Steam Deck games
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- Best underground Linux games on Steam
- Free Steam games
- Most played Steam games
- Best rated Steam games
1. Wizardry Variants Daphne
3D Dungeon RPG The portal of despair opens again. The labyrinth calls you to destruction. Revel in the endless dangers, relish the risk, devour the rewards. Savor the risk.
Wizardry Variants Daphne holds the #1 spot for "best free Underground game on Steam" with a Player Score of 52. Its score was calculated by analyzing a total of 2,114 reviews on Steam. This breaks down to a total of 1,099 positive reviews and 1,015 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Wizardry Variants Daphne on the Steam Deck (though some functionality may be limited).
| Release Date | 3/6/2025 |
| Franchise | Wizardry Official |
| Developer | Drecom Co., Ltd. |
| Publisher | Drecom Co., Ltd. |
| Steam App Id | 2379740 |
2. Underworld Idle
An idle dungeon management game, where high tier units can create low tier units.
Underworld Idle has achieved a Player Score of 69, placing it in the #2 spot for the best free Underground games. Its score was calculated by analyzing a total of 1,179 reviews on Steam. This breaks down to a total of 838 positive reviews and 341 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Underworld Idle on the Steam Deck (though some functionality may be limited).
| Release Date | 2/2/2023 |
| Developer | Aleksandr Golovkin |
| Publisher | Aleksandr Golovkin |
| Steam App Id | 1540960 |
3. Poco
Poco is the story of the world's smallest clown, who is banished from the circus and finds themself in a mysterious undergrowth full of lost and broken things. Explore, meet strange creatures, solve puzzles, and help Poco return to the circus in this charming 2D/3D hybrid point-and-click adventure.
Poco has achieved a Player Score of 95, placing it in the #3 spot for the best free Underground games. Its score was calculated by analyzing a total of 2,567 reviews on Steam. This breaks down to a total of 2,550 positive reviews and 17 negative reviews — making it "Overwhelmingly Positive" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
| Release Date | 5/20/2025 |
| Developers | |
| Publisher | Micah Boursier |
| Steam App Id | 3454610 |
4. Cave Crawlers
Cave Crawlers is a 1-10 player rogue lite set deep underground in a system of randomly generated caves. Players use weapons, spells, and talents to defeat the unique bosses and enemies found in each biome.
Cave Crawlers has achieved a Player Score of 89, placing it in the #4 spot for the best free Underground games. Its score was calculated by analyzing a total of 3,018 reviews on Steam. This breaks down to a total of 2,815 positive reviews and 203 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Cave Crawlers on the Steam Deck (though some functionality may be limited).
| Release Date | 7/10/2023 |
| Developer | Heroic Pyxel LLC |
| Publisher | Heroic Pyxel LLC |
| Steam App Id | 2143030 |
5. Gumballs & Dungeons
Embark on a free, exciting roguelike adventure with Gumballs & Dungeons! Collect and find hundreds of Gumballs, all with their own unique abilities, and create a synergistic team to tackle procedurally generated dungeons, discovering secrets and a trove of easter eggs as you explore!
Gumballs & Dungeons has achieved a Player Score of 90, placing it in the #5 spot for the best free Underground games. Its score was calculated by analyzing a total of 1,055 reviews on Steam. This breaks down to a total of 1,011 positive reviews and 44 negative reviews — making it "Overwhelmingly Positive" on Steam.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
| Release Date | 3/4/2025 |
| Developer | Qcplay |
| Publisher | UltraPlayers |
| Steam App Id | 3112010 |
6. Otherworld Legends 战魂铭人
A "blood-pumping, face-bashing" roguelike brawler. Master heroes of your choice, craft uniquely broken builds, and hack & pummel through a myriad of dungeons in a thrilling rampage.
Otherworld Legends 战魂铭人 has achieved a Player Score of 61, placing it in the #6 spot for the best free Underground games. Its score was calculated by analyzing a total of 1,323 reviews on Steam. This breaks down to a total of 832 positive reviews and 491 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
| Release Date | 4/28/2022 |
| Developer | ChillyRoom |
| Publisher | ChillyRoom |
| Steam App Id | 1761380 |
7. Molementum
Molementum is a 3D party action game where you assume the role of a mole criminal to rob mines of their precious gems. Grab up to 3 friends and scramble your way through mines while engaging in various acts of competitive mischief as you try to become the most notorious mole criminal.
Molementum has achieved a Player Score of 67, placing it in the #7 spot for the best free Underground games. Its score was calculated by analyzing a total of 23 reviews on Steam. This breaks down to a total of 18 positive reviews and 5 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Molementum on the Steam Deck (though some functionality may be limited).
| Release Date | 5/3/2024 |
| Developer | Plushie Bomb Studios |
| Publisher | Plushie Bomb Studios |
| Steam App Id | 2841830 |
8. Object N
A classic-style hardcore dynamic shooter which takes place in a science underground center.
Object N has achieved a Player Score of 81, placing it in the #8 spot for the best free Underground games. Its score was calculated by analyzing a total of 941 reviews on Steam. This breaks down to a total of 804 positive reviews and 137 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on both Windows and Linux systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
9. 魔能纪元
An IDLE role-playing game
魔能纪元 has achieved a Player Score of 46, placing it in the #9 spot for the best free Underground games. Its score was calculated by analyzing a total of 60 reviews on Steam. This breaks down to a total of 27 positive reviews and 33 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
| Release Date | 6/15/2022 |
| Developer | Fireball Studio |
| Publisher | Fireball Studio |
| Steam App Id | 1824840 |
10. Mr. Prepper: Prologue
Mr. Prepper: Prologue is a free standalone version of the game Mr. Prepper, featuring an essential part of the story.
Mr. Prepper: Prologue has achieved a Player Score of 80, placing it in the #10 spot for the best free Underground games. Its score was calculated by analyzing a total of 2,540 reviews on Steam. This breaks down to a total of 2,112 positive reviews and 428 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
| Release Date | 8/27/2020 |
| Franchise | Rejected Games |
| Developer | Rejected Games |
| Publishers | |
| Steam App Id | 1340530 |
More Free Underground Games
Explore even more rankings for the 100 best free Underground games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 648 | 3/6/2025 | 52 | Free | Steam Charts | |
| 219 | 2/2/2023 | 69 | Free | Steam Charts | |
| 72 | 5/20/2025 | 95 | Free | Steam Charts | |
| 62 | 7/10/2023 | 89 | Free | Steam Charts | |
| 59 | 3/4/2025 | 90 | Free | Steam Charts | |
| 28 | 4/28/2022 | 61 | Free | Steam Charts | |
| 4 | 5/3/2024 | 67 | Free | Steam Charts | |
| 3 | 1/13/2021 | 81 | Free | Steam Charts | |
| 3 | 6/15/2022 | 46 | Free | Steam Charts | |
| 3 | 8/27/2020 | 80 | Free | Steam Charts | |
 | 2 | 6/25/2024 | 72 | Free | Steam Charts | |
 | 2 | 11/30/2022 | 48 | Free | Steam Charts | |
 | 2 | 7/15/2022 | 62 | Free | Steam Charts | |
 | 2 | 4/10/2025 | 87 | Free | Steam Charts | |
 | 2 | 7/11/2025 | 57 | Free | Steam Charts | |
 | 1 | 11/21/2024 | 87 | Free | Steam Charts | |
 | 1 | 4/12/2023 | 50 | Free | Steam Charts | |
 | 1 | 8/14/2022 | 67 | Free | Steam Charts | |
 | 1 | 9/29/2021 | 72 | Free | Steam Charts | |
 | 1 | 10/31/2022 | 71 | Free | Steam Charts |
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Player counts and rankings are enriched, analyzed, and updated in real-time to ensure we surface the most up-to-date insights. Learn more about the Steambase approach to data collection and our review methodology.
- Valve Corporation. (2025, July 13). Steam Store. Steam Store.
- Valve Corporation. (2025, July 13). Wizardry Variants Daphne on Steam. Steam Store.
- Valve Corporation. (2025, July 10). Underworld Idle on Steam. Steam Store.
- Valve Corporation. (2025, June 7). Poco on Steam. Steam Store.
- Valve Corporation. (2025, June 26). Cave Crawlers on Steam. Steam Store.
- Valve Corporation. (2025, June 25). Gumballs & Dungeons on Steam. Steam Store.
- Valve Corporation. (2025, July 11). Otherworld Legends 战魂铭人 on Steam. Steam Store.
- Valve Corporation. (2025, June 25). Molementum on Steam. Steam Store.
- Valve Corporation. (2025, June 20). Object N on Steam. Steam Store.
- Valve Corporation. (2025, March 26). 魔能纪元 on Steam. Steam Store.
- Valve Corporation. (2025, June 25). Mr. Prepper: Prologue on Steam. Steam Store.