Free Mature Games on Steam
Steam currently has 7,683 Mature 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 Mature game rankings were last updated on 4/29/2026.
Looking for more? Explore other lists such as:
- Best mature games on Steam
- Best mature Steam Deck games
- Best mature Steam games for Mac OS
- Best mature Linux games on Steam
- Free Steam games
- Most played Steam games
- Best rated Steam games
1. VPet-Simulator
Feeling like the computer desktop is too dull? Need something cute to heal oneself? Come and try this new completely free and open source V-Pet simulator. A cute and adorable pet that supports various feeding interactions to accompany you in game learning is definitely your best choice!
VPet-Simulator holds the #1 spot for "best free Mature game on Steam" with a Player Score of 96. Its score was calculated by analyzing a total of 50,837 reviews on Steam. This breaks down to a total of 49,976 positive reviews and 861 negative reviews — making it "Overwhelmingly Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is not possible to play or run VPet-Simulator on the Steam Deck.
2. Banana
Banana is a clicker Game, in which you click a Banana! In Banana you click the Banana to gain even more Bananas! Every 3 hours, you get dropped a banana. Each banana is also made by the community in discord. Come hang out with us and let's grow into something awesome !
Banana has achieved a Player Score of 81, placing it in the #2 spot for the best free Mature games. Its score was calculated by analyzing a total of 96,139 reviews on Steam. This breaks down to a total of 78,715 positive reviews and 17,424 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on both Windows and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Release Date | 4/23/2024 |
| Developers | |
| Publishers | |
| Steam App Id | 2923300 |
3. Desktop Mate
Customize your PC with officially licensed, super-cute characters using the next-generation desktop mascot platform, Desktop Mate. Characters roam freely on your desktop, sitting on windows and playfully interacting with your mouse. Liven up your desktop with some new friends!
Desktop Mate has achieved a Player Score of 65, placing it in the #3 spot for the best free Mature games. Its score was calculated by analyzing a total of 8,762 reviews on Steam. This breaks down to a total of 5,785 positive reviews and 2,977 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 | 1/8/2025 |
| Developer | infiniteloop |
| Publisher | infiniteloop |
| Steam App Id | 3301060 |
4. Astral Party
Astral Party is a multiplayer party game populated by cute anime girls! Choose your favorite character, strategize skills & cards, and roll the dice to destroy friendships in this unique board game.
Astral Party has achieved a Player Score of 55, placing it in the #4 spot for the best free Mature games. Its score was calculated by analyzing a total of 20,448 reviews on Steam. This breaks down to a total of 11,211 positive reviews and 9,237 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Astral Party on the Steam Deck (though some functionality may be limited).
| Release Date | 2/29/2024 |
| Franchise | Neverland Entertainment |
| Developers | |
| Publisher | Neverland Entertainment |
| Steam App Id | 2622000 |
5. Lust Goddess
Lust Goddess is a hot and thrilling collectible card game, in which you will assemble your unique squad of sexy mercenary girls. Earn their love and trust, and they will show you their gratitude by bringing your wildest and lewdest fantasies to life!
Lust Goddess has achieved a Player Score of 55, placing it in the #5 spot for the best free Mature games. Its score was calculated by analyzing a total of 12,223 reviews on Steam. This breaks down to a total of 6,795 positive reviews and 5,428 negative reviews — making it "Mixed" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, it is possible to play Lust Goddess on the Steam Deck (though some functionality may be limited).
| Release Date | 2/21/2024 |
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| Publishers | |
| Steam App Id | 2808930 |
6. Amarillo's Butt Slapper
Slap it. Turn it. Slap it again. This incredible simulation of the human butt will leave you dizzy with all that bounce. It's an autoclicker, but instead of click, it slap. Way better imo.
Amarillo's Butt Slapper has achieved a Player Score of 86, placing it in the #6 spot for the best free Mature games. Its score was calculated by analyzing a total of 5,818 reviews on Steam. This breaks down to a total of 5,174 positive reviews and 644 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Release Date | 10/4/2024 |
| Developer | AmarilloArts |
| Publisher | AmarilloArts |
| Steam App Id | 3231090 |
7. Action Taimanin
An intense, gorgeous hack-and-slash action RPG from the Taimanin fame!
Action Taimanin has achieved a Player Score of 81, placing it in the #7 spot for the best free Mature games. Its score was calculated by analyzing a total of 19,273 reviews on Steam. This breaks down to a total of 16,009 positive reviews and 3,264 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Release Date | 10/6/2020 |
| Developer | LiLith |
| Publisher | Infini-Brain inc. |
| Steam App Id | 1335200 |
8. Lords Mobile: Kingdom Wars
Clash with global players in this epic real-time strategy game!
Lords Mobile: Kingdom Wars has achieved a Player Score of 66, placing it in the #8 spot for the best free Mature games. Its score was calculated by analyzing a total of 5,820 reviews on Steam. This breaks down to a total of 3,889 positive reviews and 1,931 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Lords Mobile: Kingdom Wars on the Steam Deck (though some functionality may be limited).
| Release Date | 6/3/2019 |
| Developer | IGG SINGAPORE PTE. LTD. |
| Publisher | IGG SINGAPORE PTE. LTD. |
| Steam App Id | 1041320 |
9. Dota Underlords
Hire a crew and destroy your rivals in this new strategy battler set in the world of Dota. Introducing Season One: Explore White Spire and earn rewards on the Battle Pass. Pick from several different game modes, play on your own or with friends, and take advantage of crossplay on PC and mobile.
Dota Underlords has achieved a Player Score of 81, placing it in the #9 spot for the best free Mature games. Its score was calculated by analyzing a total of 90,949 reviews on Steam. This breaks down to a total of 74,786 positive reviews and 16,163 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
10. LoveCraft
Welcome to LoveCraft - home to interesting people, hot parties, exploration and fulfilling relationships! Create your world, from a unique persona to your exciting adventures.
LoveCraft has achieved a Player Score of 69, placing it in the #10 spot for the best free Mature games. Its score was calculated by analyzing a total of 2,976 reviews on Steam. This breaks down to a total of 2,098 positive reviews and 878 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is not possible to play or run LoveCraft on the Steam Deck.
| Release Date | 4/9/2024 |
| Developer | WEALTHBIRD |
| Publisher | WEALTHBIRD |
| Steam App Id | 2692440 |
More Free Mature Games
Explore even more rankings for the 100 best free Mature games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 8,744 | 8/14/2023 | 96 | Free | Steam Charts | |
| 7,452 | 4/23/2024 | 81 | Free | Steam Charts | |
| 4,715 | 1/8/2025 | 65 | Free | Steam Charts | |
| 3,193 | 2/29/2024 | 55 | Free | Steam Charts | |
| 2,514 | 2/21/2024 | 55 | Free | Steam Charts | |
| 1,482 | 10/4/2024 | 86 | Free | Steam Charts | |
| 1,288 | 10/6/2020 | 81 | Free | Steam Charts | |
| 1,113 | 6/3/2019 | 66 | Free | Steam Charts | |
| 1,049 | 6/20/2019 | 81 | Free | Steam Charts | |
| 846 | 4/9/2024 | 69 | Free | Steam Charts | |
 | 797 | 10/19/2016 | 87 | Free | Steam Charts | |
 | 740 | 12/8/2025 | 74 | Free | Steam Charts | |
 | 684 | 8/26/2025 | 78 | Free | Steam Charts | |
 | 669 | 11/7/2024 | 72 | Free | Steam Charts | |
 | 612 | 5/19/2020 | 84 | Free | Steam Charts | |
 | 584 | 4/25/2025 | 64 | Free | Steam Charts | |
 | 526 | 11/19/2014 | 93 | Free | Steam Charts | |
 | 465 | 7/16/2023 | 59 | Free | Steam Charts | |
 | 356 | 12/1/2025 | 69 | Free | Steam Charts | |
 | 355 | 8/14/2020 | 79 | 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. (2026, April 29). Steam Store. Steam Store.
- Valve Corporation. (2026, April 29). VPet-Simulator on Steam. Steam Store.
- Valve Corporation. (2026, May 5). Banana on Steam. Steam Store.
- Valve Corporation. (2026, May 11). Desktop Mate on Steam. Steam Store.
- Valve Corporation. (2026, May 6). Astral Party on Steam. Steam Store.
- Valve Corporation. (2026, May 8). Lust Goddess on Steam. Steam Store.
- Valve Corporation. (2026, May 9). Amarillo's Butt Slapper on Steam. Steam Store.
- Valve Corporation. (2026, May 11). Action Taimanin on Steam. Steam Store.
- Valve Corporation. (2026, May 11). Lords Mobile: Kingdom Wars on Steam. Steam Store.
- Valve Corporation. (2026, April 2). Dota Underlords on Steam. Steam Store.
- Valve Corporation. (2026, May 7). LoveCraft on Steam. Steam Store.