Free Mature Games on Steam
Steam currently has 6,621 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 10/13/2025.
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. 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 holds the #1 spot for "best free Mature game on Steam" with a Player Score of 81. Its score was calculated by analyzing a total of 91,619 reviews on Steam. This breaks down to a total of 75,054 positive reviews and 16,565 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 |
2. 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 has achieved a Player Score of 96, placing it in the #2 spot for the best free Mature games. Its score was calculated by analyzing a total of 47,799 reviews on Steam. This breaks down to a total of 46,976 positive reviews and 823 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.
3. 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 #3 spot for the best free Mature games. Its score was calculated by analyzing a total of 5,073 reviews on Steam. This breaks down to a total of 4,516 positive reviews and 557 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 Amarillo's Butt Slapper on the Steam Deck (though some functionality may be limited).
| Release Date | 10/4/2024 |
| Developer | AmarilloArts |
| Publisher | AmarilloArts |
| Steam App Id | 3231090 |
4. 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 63, placing it in the #4 spot for the best free Mature games. Its score was calculated by analyzing a total of 7,548 reviews on Steam. This breaks down to a total of 4,829 positive reviews and 2,719 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 |
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 11,133 reviews on Steam. This breaks down to a total of 6,174 positive reviews and 4,959 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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| Steam App Id | 2808930 |
6. 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 56, placing it in the #6 spot for the best free Mature games. Its score was calculated by analyzing a total of 18,145 reviews on Steam. This breaks down to a total of 10,218 positive reviews and 7,927 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 |
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| Publisher | Neverland Entertainment |
| Steam App Id | 2622000 |
7. Wallpaper Alive
The free and open source animated wallpaper utility for Windows! Transform your desktop with animated gifs and videos.
Wallpaper Alive has achieved a Player Score of 85, placing it in the #7 spot for the best free Mature games. Its score was calculated by analyzing a total of 11,658 reviews on Steam. This breaks down to a total of 10,208 positive reviews and 1,450 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.
8. 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 #8 spot for the best free Mature games. Its score was calculated by analyzing a total of 18,884 reviews on Steam. This breaks down to a total of 15,690 positive reviews and 3,194 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 |
9. Crush Crush
Welcome to Crush Crush - the Idle Dating Sim! Meet, flirt, and fall in love with a motley cast of girls in this heartfelt and hilarious game.
Crush Crush has achieved a Player Score of 87, placing it in the #9 spot for the best free Mature games. Its score was calculated by analyzing a total of 27,473 reviews on Steam. This breaks down to a total of 24,450 positive reviews and 3,023 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Crush Crush on the Steam Deck (though some functionality may be limited).
| Release Date | 10/19/2016 |
| Franchise | Sad Panda Studios Games |
| Developer | Sad Panda Studios |
| Publisher | Sad Panda Studios |
| Steam App Id | 459820 |
10. 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 #10 spot for the best free Mature games. Its score was calculated by analyzing a total of 90,923 reviews on Steam. This breaks down to a total of 74,757 positive reviews and 16,166 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.
More Free Mature Games
Explore even more rankings for the 100 best free Mature games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 87,988 | 4/23/2024 | 81 | Free | Steam Charts | |
| 6,866 | 8/14/2023 | 96 | Free | Steam Charts | |
| 5,283 | 10/4/2024 | 86 | Free | Steam Charts | |
| 2,555 | 1/8/2025 | 63 | Free | Steam Charts | |
| 1,928 | 2/21/2024 | 55 | Free | Steam Charts | |
| 1,365 | 2/29/2024 | 56 | Free | Steam Charts | |
| 954 | 6/4/2022 | 85 | Free | Steam Charts | |
| 930 | 10/6/2020 | 81 | Free | Steam Charts | |
| 922 | 10/19/2016 | 87 | Free | Steam Charts | |
| 787 | 6/20/2019 | 81 | Free | Steam Charts | |
 | 778 | 6/3/2019 | 66 | Free | Steam Charts | |
 | 702 | 11/7/2024 | 70 | Free | Steam Charts | |
 | 651 | 8/26/2025 | 80 | Free | Steam Charts | |
 | 529 | 4/25/2025 | 64 | Free | Steam Charts | |
 | 493 | 8/22/2024 | 72 | Free | Steam Charts | |
 | 441 | 8/14/2020 | 78 | Free | Steam Charts | |
 | 409 | 4/9/2024 | 68 | Free | Steam Charts | |
 | 368 | 7/17/2023 | 60 | Free | Steam Charts | |
 | 335 | 5/19/2020 | 84 | Free | Steam Charts | |
 | 242 | 4/22/2020 | 84 | 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, October 13). Steam Store. Steam Store.
- Valve Corporation. (2025, October 13). Banana on Steam. Steam Store.
- Valve Corporation. (2025, October 22). VPet-Simulator on Steam. Steam Store.
- Valve Corporation. (2025, October 22). Amarillo's Butt Slapper on Steam. Steam Store.
- Valve Corporation. (2025, October 23). Desktop Mate on Steam. Steam Store.
- Valve Corporation. (2025, October 22). Lust Goddess on Steam. Steam Store.
- Valve Corporation. (2025, October 13). Astral Party on Steam. Steam Store.
- Valve Corporation. (2025, October 7). Wallpaper Alive on Steam. Steam Store.
- Valve Corporation. (2025, October 23). Action Taimanin on Steam. Steam Store.
- Valve Corporation. (2025, October 22). Crush Crush on Steam. Steam Store.
- Valve Corporation. (2025, September 27). Dota Underlords on Steam. Steam Store.