A downloadable game

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Secret Science Sewer Siblings was a 2020 nominee for an ENnie Award for Best Free Game!


You and your siblings are sewer animals mutated into bipedal beings with bodies and minds similar to human adolescents. You've also been trained in ancient martial arts. Go rescue your mentor and learn to share pizza with your siblings!

A simple tabletop RPG in the vein of Lasers & Feelings. Perfect for onboarding interested newcomers into the world of roleplaying games.

The complete game is two pages, one page for players and one page for the GM.

Endorsed here on the Gauntlet podcast!

Check out actual play videos here!

CategoryPhysical game
Rated 5.0 out of 5 stars
(14 total ratings)
AuthorCloven Pine Games
GenreRole Playing


Download NowName your own price

Click download now to get access to the following files:

Secret Science Sewer Siblings V1.pdf 4 MB


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Just finished playing a game of SSSS via Play-By-Post over on Gamersplane - it was a short game, but I thought you might enjoy reading what we came up with :) https://gamersplane.com/games/4270/

Oh man! I took a quick look, and now I have big grin on my face. What a fun group of players. And fighting snakes with lasers! Thanks so much for sharing.

I ran this with some friends last week, and we had a blast the whole way through!

I'm so happy to hear that! Glad you and your friends enjoyed the game.


i am totally looking forward to running Secret Science Sewer Siblings followed by AltNYC88 soon. will be fun to explore the different takes on core themes and ideas of TMNT.


Radical! :) I hope you have a great time with both games.


hehe is love the game!! :D