SENTINEL: Explore a Mysterious Alien Pyramid on the Moon

8/31/2026, 9:50:04 AM

Release date: 1/29/2023

Tags: #action #adventure #platformer #2d-platformer #cartoon #comic-book #combat #singleplayer

User Reviews

Score: 88%Positive
Review Count: 17 reviews
Fetched At: 8/31/2026, 9:50:04 AM

Reference prices

Japan

Free to Play (JPY)

Steam JP

Free to Play (USD)

Steam

Live Store Snapshot

Body text may reflect the state at publication time. For the latest sale, price, and review changes, prioritize the live price panel, review panel, and the Steam store listing.

Japan Price: Free to Play
Global Price: Free to Play
Sale Status: Regular pricing
Price Checked At: 8/31/2026, 9:45:45 AM

Key highlight

SENTINEL is a free-to-play 2D exploration platformer inspired by Arthur C. Clarke and classic games, set in an alternate future where humanity explores a mysterious alien pyramid on the moon. Developed by Jack Perkins an

Who this is for

For those who enjoy sci-fi mysteries and classic platforming, SENTINEL is a must-try. It's free-to-play, making it easy to dive into the secrets of the lunar pyramid.

Details

Overview

Inspired by the visionary works of Arthur C. Clarke and the beloved 2D exploration platformers of the 90s and 2010s, SENTINEL invites players into an alternate future where humanity's focus has shifted from Earth to the stars. The discovery of a mysterious pyramid structure during the 1969 moon landing sparked this cosmic curiosity. After years of dedicated research, humanity found a way to breach the monolith's secrets, but at a steep price: no one who entered ever returned. With dwindling volunteers, a colossal bounty of $150 billion was offered to the first individual brave enough to enter and exit the enigmatic structure.

Highlights

Genre-Bending Adventure: SENTINEL blends 2D exploration platforming with engaging combat, drawing inspiration from classic titles and science fiction literature.
Free-to-Play Exploration: Dive into this alternate future and uncover the secrets of the moon pyramid without any initial cost, making it accessible to all aspiring explorers.
Singleplayer Focus: Experience the thrill of discovery and the challenge of survival in a dedicated singleplayer adventure, designed for immersive exploration.

Who It's For

SENTINEL is perfect for players who relish classic 2D platforming challenges, enjoy narrative-driven exploration, and are drawn to intriguing science fiction concepts. Fans of games that combine thoughtful level design with moments of action and discovery will find a lot to love here. If you're looking for a free-to-play title that offers a substantial adventure with a compelling premise, SENTINEL is definitely worth checking out.

Game Info

Developed by Jack Perkins and Kriscia Martinez, and published by Vania Games, SENTINEL offers a unique 2D exploration platformer experience. Released on January 29, 2023, this title is free to play and supports singleplayer gameplay. Its cartoon and comic book art style, combined with action and adventure elements, creates a visually distinct and engaging world. The game is available in English and supports family sharing and controllers.