Free Mature Games on Steam

Steam currently has 6,012 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 6/27/2025.

Looking for more? Explore other lists such as:

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 banner

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 90,109 reviews on Steam. This breaks down to a total of 74,142 positive reviews and 15,967 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.

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 banner

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 46,620 reviews on Steam. This breaks down to a total of 45,827 positive reviews and 793 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.

Release Date 8/13/2023
Developer LB Game
Publisher LB Game
Steam App Id 1920960

3. 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 banner

Lust Goddess has achieved a Player Score of 55, placing it in the #3 spot for the best free Mature games. Its score was calculated by analyzing a total of 10,477 reviews on Steam. This breaks down to a total of 5,827 positive reviews and 4,650 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
Developers
Publishers
Steam App Id 2808930

4. 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 banner

Amarillo's Butt Slapper has achieved a Player Score of 86, placing it in the #4 spot for the best free Mature games. Its score was calculated by analyzing a total of 4,613 reviews on Steam. This breaks down to a total of 4,129 positive reviews and 484 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

5. 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  banner

Astral Party has achieved a Player Score of 56, placing it in the #5 spot for the best free Mature games. Its score was calculated by analyzing a total of 17,168 reviews on Steam. This breaks down to a total of 9,633 positive reviews and 7,535 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).

6. 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 banner

Desktop Mate has achieved a Player Score of 62, placing it in the #6 spot for the best free Mature games. Its score was calculated by analyzing a total of 6,801 reviews on Steam. This breaks down to a total of 4,314 positive reviews and 2,487 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

7. Horny Villa

All roads lead to Horny Villa: a casual NSFW merger game featuring engaging mechanics, spicy erotic content and the hottest girls. Build the villa of your wettest dreams and cast sexy babes to join you for the ride. Grab your purple robe and pipe, and create the largest empire of debauchery!

Horny Villa banner

Horny Villa has achieved a Player Score of 70, placing it in the #7 spot for the best free Mature games. Its score was calculated by analyzing a total of 3,397 reviews on Steam. This breaks down to a total of 2,436 positive reviews and 961 negative reviews — making it "Mostly Positive" on Steam.

It can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Horny Villa on the Steam Deck (though some functionality may be limited).

Release Date 11/7/2024
Developer GreenT
Publisher Nutaku Publishing
Steam App Id 2903690

8. Wallpaper Alive

The free and open source animated wallpaper utility for Windows! Transform your desktop with animated gifs and videos.

Wallpaper Alive banner

Wallpaper Alive has achieved a Player Score of 86, placing it in the #8 spot for the best free Mature games. Its score was calculated by analyzing a total of 10,461 reviews on Steam. This breaks down to a total of 9,268 positive reviews and 1,193 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 6/4/2022
Developers
Publishers
Steam App Id 2003310

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 banner

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 90,879 reviews on Steam. This breaks down to a total of 74,736 positive reviews and 16,143 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.

Release Date 6/20/2019
Franchise Dota
Developer Valve
Publisher Valve
Steam App Id 1046930

10. Action Taimanin

An intense, gorgeous hack-and-slash action RPG from the Taimanin fame!

Action Taimanin banner

Action Taimanin 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 18,695 reviews on Steam. This breaks down to a total of 15,538 positive reviews and 3,157 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

More Free Mature Games

Explore even more rankings for the 100 best free Mature games available on Steam.

ImageName
Actions
Banana steam charts
93,611
4/23/2024
81
Free
Steam Charts
VPet-Simulator steam charts
10,115
8/13/2023
96
Free
Steam Charts
Lust Goddess steam charts
2,929
2/21/2024
55
Free
Steam Charts
Amarillo's Butt Slapper steam charts
2,420
10/4/2024
86
Free
Steam Charts
Astral Party  steam charts
2,107
2/29/2024
56
Free
Steam Charts
Desktop Mate steam charts
1,607
1/8/2025
62
Free
Steam Charts
Horny Villa steam charts
1,211
11/7/2024
70
Free
Steam Charts
Wallpaper Alive steam charts
1,167
6/4/2022
86
Free
Steam Charts
Dota Underlords steam charts
1,146
6/20/2019
81
Free
Steam Charts
Action Taimanin steam charts
1,071
10/6/2020
81
Free
Steam Charts
Lords Mobile: Pacific Rim War steam charts
1,043
6/3/2019
66
Free
Steam Charts
Soul Dossier steam charts
974
3/29/2021
81
Free
Steam Charts
Book of Yog Idle RPG steam charts
871
4/25/2025
63
Free
Steam Charts
Crush Crush steam charts
813
10/19/2016
87
Free
Steam Charts
Aeons Echo steam charts
812
8/22/2024
72
Free
Steam Charts
Angel Legion steam charts
639
8/14/2020
78
Free
Steam Charts
Battle Teams 2 steam charts
552
7/20/2022
56
Free
Steam Charts
GWENT: The Witcher Card Game steam charts
540
5/19/2020
84
Free
Steam Charts
Rise of Eros steam charts
434
7/17/2023
61
Free
Steam Charts
LoveCraft steam charts
424
4/9/2024
67
Free
Steam Charts
Page 1 of 5

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, June 27). Steam Store. Steam Store.
  • Valve Corporation. (2025, June 27). Banana on Steam. Steam Store.
  • Valve Corporation. (2025, June 29). VPet-Simulator on Steam. Steam Store.
  • Valve Corporation. (2025, June 28). Lust Goddess on Steam. Steam Store.
  • Valve Corporation. (2025, June 25). Amarillo's Butt Slapper on Steam. Steam Store.
  • Valve Corporation. (2025, June 23). Astral Party on Steam. Steam Store.
  • Valve Corporation. (2025, June 27). Desktop Mate on Steam. Steam Store.
  • Valve Corporation. (2025, June 28). Horny Villa on Steam. Steam Store.
  • Valve Corporation. (2025, June 25). Wallpaper Alive on Steam. Steam Store.
  • Valve Corporation. (2025, June 19). Dota Underlords on Steam. Steam Store.
  • Valve Corporation. (2025, June 27). Action Taimanin on Steam. Steam Store.

Discover More Steam Games

Browse our top collections and curated lists of games avaible to play on Steam. Whether you are playing on PC, Mac, or on the Steam Deck, find your next favorite game.

Steam Deck Games

Steam Mac Games

Steam Linux Games

Explore

Discover the best of Steam. Find your next game, free weekend, or even track the next Steam Sale all in one spot.