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About Sentinels of Earth-Prime
Sentinels of Earth‑Prime is a cooperative digital card game that mirrors the fast‑paced action of superhero comics. Players assemble a team of heroes, play cards, activate powers, and draw new cards, while each card’s special ability can create combos or even modify the game’s rules.
The base set supplies ten heroes, four villains, and four distinct environments, plus ten unlockable hero variant cards. It supports solo play, local pass‑and‑play, and cross‑platform online multiplayer, and includes Steam Cloud saves and a collection of achievements.
01 / THE GUIDE
Core Gameplay Loop
Each turn follows three steps: Play a Card, Use a Power, then Draw a Card. Each turn follows this simple three-step structure, keeping the rules easy to pick up while the cards supply the tactical depth.
Every card carries a unique ability that can trigger powerful combos or alter the rules for that turn. These effects add strategic depth beyond the simple loop, encouraging experimentation with different card sequences.
- Pair cards whose abilities reference each other to discover hidden combos.
- Observe how rule‑changing cards affect turn order and plan accordingly.
02 / THE GUIDE
Hero and Villain Roster
The core game provides ten heroes—Bowman, Captain Thunder, Daedalus, Dr. Metropolis, Johnny Rocket, Lady Liberty, Pseudo, The Raven, Siren, and Star Knight—each with a dedicated card pool. Four villains—Argo the Ultimate Android, Hades, Grue Meta‑Mind, and Omega—serve as the primary antagonists.
An additional ten hero variant cards, featuring alternate powers and backstories, become available after completing secret storyline‑based challenges. These variants expand tactical options without requiring extra purchases.
- Try different hero combinations to see which power sets complement each other.
- Complete the hidden challenges to unlock variant cards and broaden your strategic toolkit.
03 / THE GUIDE
Cross‑Compatibility with Sentinels of the Multiverse
Sentinels of Earth‑Prime works alongside Sentinels of the Multiverse when both titles are present on a system. In that situation, all owned content from either game becomes accessible within a single session.
This integration lets players mix heroes, villains, and cards from both franchises, dramatically increasing the number of possible battles when both games are installed together.
- Install both games on the same machine to unlock the combined library.
- Create mixed decks to explore match‑ups unavailable in a single title.
04 / THE GUIDE
Multiplayer Modes
Players can run solo games with three to five heroes, use local pass‑and‑play for shared‑screen sessions, or join online matches across Windows, macOS, and Linux. The game supports shared/split‑screen co‑op as well as cross‑platform online play.
Steam Cloud saves retain progress, and 27 Steam achievements provide goals for both solo and cooperative experiences, encouraging repeated play.
- Use pass‑and‑play for quick local sessions when only one device is available.
- Coordinate hero selections with online teammates to cover a broader range of powers.
05 / THE GUIDE
Audio and Visual Presentation
Original music by Jean‑Marc Giffin includes an Earth‑Prime theme, ambient tracks for each environment, and ending themes for each villain. The four environments—Freedom City, Farside City, Tartarus, and The Terminus—feature beautifully rendered backdrops.
Every hero and villain receives brand‑new artwork, and the combination of music, visuals, and over 9,000 potential battle configurations creates a comic‑book atmosphere.
- Listen to the environment‑specific tracks to help differentiate each battle setting.
- Compare the hero and villain artwork to appreciate the distinct visual style.
COMMUNITY
Player discussion