IMHO.

Free games like Deep Dark Forest

Below are 8 free-to-play Steam games similar to Deep Dark Forest, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Deep Dark Forest page.

Ranked picks

  1. 1
    Landfall Archives — Steam game cover

    Landfall Archives

    Free-to-play alternative to Deep Dark Forest — no purchase or trial window. Shares Strategy and Indie with Deep Dark Forest.

    Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!

    2023ActionStrategyIndieFreeFree to playSimilar games →
  2. 2
    The Riftbreaker: Prologue — Steam game cover

    The Riftbreaker: Prologue

    Free-to-play alternative to Deep Dark Forest — no purchase or trial window. Shares Strategy and Indie with Deep Dark Forest.

    The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.

    2020ActionStrategyIndieFreeDeck PlayableFree to playSimilar games →
  3. 3
    Counter-Strike 2 — Steam game cover

    Counter-Strike 2

    Free-to-play alternative to Deep Dark Forest — no purchase or trial window.

    For over two decades, Counter-Strike has offered an elite competitive experience, one shaped by millions of players from across the globe. And now the next chapter in the CS story is about to begin. This is Counter-Strike 2.

    2012ActionFree To PlayFreeDeck PlayableFree to playSimilar games →
  4. 4
    Dota 2 — Steam game cover

    Dota 2

    Free-to-play alternative to Deep Dark Forest — no purchase or trial window. Shares Strategy with Deep Dark Forest.

    Every day, millions of players worldwide enter battle as one of over a hundred Dota heroes. And no matter if it's their 10th hour of play or 1,000th, there's always something new to discover. With regular updates that ensure a constant evolution of gameplay, features, and heroes, Dota 2 has taken on a life of its own.

    2013ActionStrategyFree To PlayFreeDeck PlayableFree to playSimilar games →
  5. 5
    Tom Clancy's Rainbow Six Siege — Steam game cover

    Tom Clancy's Rainbow Six Siege

    Free-to-play alternative to Deep Dark Forest — no purchase or trial window.

    Rainbow Six® Siege is the reference in tactical team shooters, where elite strategy and execution triumph. Enjoy free access to Quick Match, Unranked, and Dual Front game modes with a selection of operators.

    2015ActionFree To PlayFreeFree to playSimilar games →
  6. 6
    World of Warships — Steam game cover

    World of Warships

    Free-to-play alternative to Deep Dark Forest — no purchase or trial window. Shares Strategy and Simulation with Deep Dark Forest.

    Immerse yourself in thrilling naval battles and assemble an armada of over 800 ships from the first half of the 20th century — from stealthy destroyers to gigantic battleships. Change the look of your ship, choose upgrades to suit your play style, and go into battle with other players!

    2017ActionStrategySimulationFreeDeck PlayableFree to playSimilar games →
  7. 7
    Crusader Kings II — Steam game cover

    Crusader Kings II

    Free-to-play alternative to Deep Dark Forest — no purchase or trial window. Shares Strategy and Simulation with Deep Dark Forest.

    Explore one of the defining periods in world history in an experience crafted by the masters of Grand Strategy.

    2012StrategySimulationRPGFreeDeck PlayableFree to playSimilar games →
  8. 8
    PlanetSide 2 — Steam game cover

    PlanetSide 2

    Free-to-play alternative to Deep Dark Forest — no purchase or trial window.

    PlanetSide 2 is an all-out planetary war, where thousands of players battle as one across enormous continents. Utilize infantry, ground and air vehicles, and teamwork to destroy your enemies in this revolutionary first-person shooter on a massive scale.

    2012ActionMassively MultiplayerFree To PlayFreeDeck PlayableFree to playSimilar games →