Castle to Cosmos
Castle to CosmosStrategy
Castle to Cosmos cover art
Castle to Cosmos is a free strategy game by yosata. Play it online on Playgama.
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Castle to Cosmos
Castle to CosmosStrategy

Castle to Cosmos

4.1 / 3 votesE
Developer: yosata
Game Orientation: Landscape, Portrait
Platforms: PC, Android, iOS
Release date: October 2026
Last Update: October 2026
Supported Languages: English, Turkish
Categories: New, Strategy, Mouse, PvE, War

About Castle to Cosmos: Strategic Territory Conquest Across Eight Ages

Castle to Cosmos is a strategic territory conquest game that opens with a fallen star, a scattered crystal, and a dynasty determined to chase it across time. Starting from medieval castles, the campaign stretches through eight distinct ages — Middle Ages, Age of Discovery, Industrial Age, Modern Age, Space Age, Planets, Galaxy, and Beyond Time — each with its own map style and a fresh mechanic layered on top of the core conquest loop. The story unfolds through cinematics, introducing new characters in every age and culminating in a final boss at the end of each world.

Across 80 handcrafted chapters, the goal is to gather the eight shards of the Star Heart by outsmarting three rival houses: an aggressive sworn enemy, opportunistic raiders, and patient merchants. Dynasty Treasury upgrades, chests, daily rewards, and 12 achievements give the campaign ongoing structure beyond individual battles.

How to Play Castle to Cosmos: Capture Regions and Gather the Star Heart

Every chapter is played on a map divided into regions. Drag from one of your blue regions to another region and half of its troops march out. Dragging across several of your own regions at once launches a combined attack. 5, and towns train troops faster than other region types. Defeat every rival house to complete the chapter.

Boosts

    • Reinforcements
    • Mobilize
    • Walls
    • Ready Power

Boost buttons sit at the bottom right during battle. Tap any region to inspect its details.

Earning Stars

    • Win the chapter
    • Lose no region
    • Beat the clock

Up to 3 stars are available per chapter based on those three conditions.

Age Mechanics

    • Middle Ages
    • Age of Discovery — sea routes and wind
    • Industrial Age — railways
    • Modern Age — air strikes
    • Space Age — orbiting moons
    • Planets — shield sieges
    • Galaxy — wormholes
    • Beyond Time — summoning armies from the past

Controls

    • Click and drag (mouse): drag from your region to a target to send troops
    • Tap and drag (touch): drag from your region to a target to send troops
    • Tap your region, then tap the target (touch): alternative way to issue a move order

Games You Might Like

If the region-by-region conquest in Castle to Cosmos appeals to you, the broader strategy games catalogue on Playgama has plenty more to explore. Expand.io shares the same drive to claim territory and outmaneuver rivals across a contested map. Age of Heroes pairs army-building with castle sieges across multiple eras, echoing Castle to Cosmos's age-spanning campaign. Honey Wars distills the capture-buildings-and-grow-your-garrison formula into a fast one-on-one duel with its own faction twist.

For more mouse-driven strategy, the mouse games section and the PvE games section both surface titles that reward careful planning against AI opponents.

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