Colony Siege similar games & best alternatives

Colony Siege

PC (Microsoft Windows) • 2020

Should you play it?

Colony Siege combines the best of RTS and tower defense, including base building, mazing, and unit physics. Defend Earth's remaining colonies using an arsenal of deadly weapons to torch, slice, throw, and impale swarms of alien invaders.

What works
  • Strong co-op gameplay and synergy
  • Varied towers, traps, and units for strategic depth
  • Good progression and upgrade system
  • Multiple game modes including endless and survival
  • Sci-fi setting with immersive visuals and effects
Things to keep in mind
  • Final mission considered weak and anticlimactic
  • Some balance issues and dominant strategies reduce experimentation
  • Limited story depth and poor voice acting
  • Maps can feel repetitive and large with limited mazing options
  • Soundtrack and audio effects sometimes bland or repetitive

What to play next

Top picks

Games that feel the closest overall

  • 8-Bit Invaders!

  • Stronghold Crusader: Definitive Edition

  • Command & Conquer™ Red Alert™ 3

  • Stronghold Crusader HD (2012)

  • Northgard: Definitive Edition

  • Age of Empires® III (2007)

  • Zero-K

  • Supreme Commander

  • Space Prison

Hidden Gems

Less popular games with surprisingly high similarity

  • Space Prison

  • No Creeps Were Harmed TD

  • Reign of Darkness

If you liked…

Recommendations by what you enjoyed most

  • Autonomy

    Creeper World 3: Arc Eternal

  • Cooperation

    Escape First Alchemist ⚗️

  • Creativity

    Fieldrunners 2

Similarity map

Explore nearby similar games and see why they’re close.

How to use the graph
Similarity map

Each dot is a game. They are arranged from the same motivation profile as in the “Why this game works” section below. Closer dots usually mean more similar reasons to play (exploration, competition, relaxation, etc.)—not that one game is “better” than another.

  • Purple star: this page’s game — everything on the map is relative to it.
  • Coloured chips: click to highlight games that mainly differ on that motivation; click again to reset.
  • Dotted line: link between this page’s game and the one selected for comparison.
  • Hover a dot for a screenshot preview, score, and top score gaps; click to compare in the panel on the right.
  • Scroll or double-click the chart to zoom out and see more games.

Why don’t the axes read like a score? This view uses t-SNE: it only keeps who is close to whom. The scales are not “good to bad” or hours played—they separate groups on the map. Read distance between dots, not the axis numbers (hidden on purpose).

Colony Siege: A very typical example of its motivational profile. Motivations that often define this kind of title include Cooperation, Fellowship, Intimacy, Leadership. Here, the score leans higher than usual among comparable games on Status, Competition, Leadership.

Why this game works

A motivational profile of the game, with the closest similar game for each player motivation.

  • Autonomy

    Game with the same Autonomy vibe

    4

    "Players have freedom to build and expand their base, choose strategies, and place units anywhere on the map."

    Capsule for Creeper World 3: Arc Eternal Creeper World 3: Arc Eternal

    "Players have freedom to build towers, traps, and units anywhere on the map and choose different strategies, though some missions funnel players into optimal strategies."

  • Competence

    Game with the same Competence vibe

    3

    "The game involves skillful management of resources, tower placement, and combat tactics with feedback from progression and difficulty scaling."

    Capsule for Cluckmech Oasis Cluckmech Oasis

    "Players engage in strategic tower placement, unit control, and resource management with skillful execution rewarded; some complaints about balance and difficulty tuning."

  • Competition

    Game with the same Competition vibe

    1

    "Includes multiplayer co-op with team roles and some leaderboards, but no strong emphasis on ranked competition or PvP."

    Capsule for G2 Fighter / 基因特工 G2 Fighter / 基因特工

    "Includes leaderboards and co-op play, but no strong emphasis on competitive PvP or ranked modes."

  • Continuation

    Game with the same Continuation vibe

    3

    "Players report long playtimes, grinding for upgrades, and replaying missions, indicating habitual and extended play."

    Capsule for Attack on Titan / A.O.T. Wings of Freedom Attack on Titan / A.O.T. Wings of Freedom

    "Players report long playtimes, replaying missions for upgrades and optional modes like endless and survival increase engagement."

  • Cooperation

    Game with the same Cooperation vibe

    4

    "Co-op mode is supported and praised; players work together to solve puzzles and share inventory."

    Capsule for Escape First Alchemist ⚗️ Escape First Alchemist ⚗️

    "Co-op mode is well implemented, allowing players to specialize and coordinate strategies effectively."

  • Creativity

    Game with the same Creativity vibe

    4

    "Players creatively design maze-like tower layouts and experiment with tower combinations and strategies."

    Capsule for  Fieldrunners 2 Fieldrunners 2

    "Players can create mazes with tower placement, experiment with many towers, traps, and units, and use environmental hazards strategically."

  • Domination

    Game with the same Domination vibe

    -3

    "Interactions emphasize shared teamwork and balanced co-op play rather than dominance or power over others."

    Capsule for Trickster VR: Co-op Dungeon Crawler Trickster VR: Co-op Dungeon Crawler

    "Co-op and balanced multiplayer interactions emphasize shared effort rather than dominance or power over others."

  • Escapism

    Game with the same Escapism vibe

    3

    "Players use the game as a fun distraction with immersive sci-fi environments and engaging gameplay."

    Capsule for Sanctum Sanctum

    "Players use the game as a fun distraction with immersive sci-fi setting and strategic gameplay."

  • Expectation

    Game with the same Expectation vibe

    -4

    "Players engage voluntarily for enjoyment and challenge; no evidence of obligation or external pressure."

    Capsule for Phantom Rose 2 Sapphire Phantom Rose 2 Sapphire

    "Players engage voluntarily for enjoyment and challenge; no evidence of obligation or external pressure."

  • Experimenting

    Game with the same Experimenting vibe

    3

    "Game encourages trying different strategies and unit/tower combinations, though some dominant strategies exist."

    Capsule for Toy Shire Toy Shire

    "Game encourages trying different tower and unit combinations and adapting strategies, though some optimal builds dominate."

  • Exploration

    Game with the same Exploration vibe

    2

    "Varied maps and objectives offer some discovery, though environments are often similar and repetitive."

    Capsule for Dark Deity Dark Deity

    "Varied maps and environmental effects provide some discovery, but maps are limited and often reused."

  • Expression

    Game with the same Expression vibe

    1

    "Limited cosmetic customization; expression mainly through strategic choices rather than avatar or environment personalization."

    Capsule for ICBM: Escalation ICBM: Escalation

    "Limited cosmetic customization; focus is more on strategic choices than avatar or environment personalization."

  • Fantasy

    Game with the same Fantasy vibe

    4

    "Set in a futuristic sci-fi world with alien enemies and imaginative technology."

    Capsule for Sanctum Sanctum

    "Set in a sci-fi universe with alien invaders, futuristic weapons, and imaginative technology."

  • Fellowship

    Game with the same Fellowship vibe

    3

    "Community and co-op play foster social connection and shared achievements."

    Capsule for Atlas Fallen: Reign Of Sand Atlas Fallen: Reign Of Sand

    "Strong community and co-op play foster social connection and shared achievements."

  • Growth

    Game with the same Growth vibe

    3

    "Players unlock new towers and upgrades over time, learning strategies and improving skills through repeated play."

    Capsule for Core Defense Core Defense

    "Players unlock upgrades, new towers, and abilities, learning new strategies and improving skills over time."

  • Health

    Game with the same Health vibe

    -4

    "Typical sedentary gameplay with no physical activity elements."

    Capsule for Sniper Elite 4 Sniper Elite 4

    "Typical sedentary gameplay with no physical activity elements."

  • Idle

    Game with the same Idle vibe

    -3

    "Requires active attention and continuous engagement during waves and building phases."

    Capsule for Ultimate Zombie Defense 2 Ultimate Zombie Defense 2

    "Requires continuous attention and active management during waves and building phases."

  • Intimacy

    Game with the same Intimacy vibe

    2

    "Co-op play encourages social interaction and teamwork but limited evidence of deep emotional or close personal relationships."

    Capsule for Remnant: From the Ashes Remnant: From the Ashes

    "Co-op play allows for social interaction and teamwork, but no deep emotional or personal relationship building."

  • Leadership

    Game with the same Leadership vibe

    2

    "Some players coordinate and lead strategies in co-op, but leadership is shared and collaborative."

    Capsule for HELLCARD: Prologue HELLCARD: Prologue

    "Players can lead in co-op by managing units and defenses, but leadership is shared and collaborative."

  • Progression

    Game with the same Progression vibe

    4

    "Strong progression system with currency, weapon unlocks, upgrades, and mission advancement."

    Capsule for BRUTALISTICK VR BRUTALISTICK VR

    "Strong progression system with unlocking towers, units, upgrades, and perks through gameplay and currency."

  • Relaxation

    Game with the same Relaxation vibe

    1

    "Some players find the game fun and engaging, but others note frustration and tension from difficulty spikes."

    Capsule for Xpand Rally Xtreme Xpand Rally Xtreme

    "Some players find the gameplay satisfying and enjoyable, but others note frustration with difficulty spikes and balance."

  • Sensation

    Game with the same Sensation vibe

    2

    "Visual and audio effects provide sensory stimulation, though some find music repetitive."

    Capsule for Run Build Pew! Run Build Pew!

    "Visual and audio effects provide sensory stimulation, though some find music and sound repetitive or bland."

  • Status

    Game with the same Status vibe

    1

    "Leaderboards and achievements provide some social recognition, but not a major focus."

    Capsule for The Typing of The Dead: Overkill The Typing of The Dead: Overkill

    "Leaderboards and achievements provide some social recognition, but not a major focus."

  • Story

    Game with the same Story vibe

    2

    "There is a narrative and missions, but story is considered weak or secondary by many players."

    Capsule for SkyBrew: Entropic Strategist SkyBrew: Entropic Strategist

    "Basic sci-fi narrative with voiceovers and mission briefings, but story is considered weak or forgettable by many players."

  • Strategy

    Game with the same Strategy vibe

    4

    "Strong emphasis on strategic tower placement, resource management, and adapting to enemy types and bosses."

    Capsule for Age of Defense Age of Defense

    "Strong emphasis on strategic planning, tower placement, resource management, and adapting to enemy types."

  • Thrill

    Game with the same Thrill vibe

    2

    "Some tension from waves and bosses, but overall gameplay is predictable and lacks high suspense."

    Capsule for YORG.io YORG.io

    "Some tension during waves and boss fights, but overall gameplay is predictable with limited suspense."

  • Value

    Game with the same Value vibe

    4

    "Players report good value for price with many hours of gameplay and replayability."

    Capsule for Spirits of the Hellements - TD Spirits of the Hellements - TD

    "Players report good value for price with many hours of gameplay and replayability."

  • Violence

    Game with the same Violence vibe

    3

    "Combat involves destroying alien enemies and environment with weapons and explosions."

    Capsule for The Riftbreaker: Prologue The Riftbreaker: Prologue

    "Combat involves destroying alien units and bases with weapons and towers; moderate level of violence typical for the genre."

  • Survival

    Game with the same Survival vibe

    3

    "Players must defend bases and survive waves of enemies, managing resources and positioning."

    Capsule for Frontline Crisis Frontline Crisis

    "Players must defend bases against waves of enemies, managing resources and threats to avoid defeat."

Last update: 12/07/2026