Civil Jam: Build a Civilization with Prompts, Defend Your Planet from Invasion

Ever imagined creating an entire civilization on a random planet—using nothing but a few lines of text prompts—while fending off alien forces?
The new indie PC game Civil Jam blends prompt-driven generation with planetary defense: define your civilization's style and growth path through words, then construct buildings, produce combat units, upgrade technologies, and hold out against waves of enemies. The longer you survive, the higher your score.

Basic Info

• Title: Civil Jam
• Developer / Studio: Gumo
• Platform: PC
• Language: English
• Release Date: 2025.7.23
• Tags: Planet Defense / Real-Time Strategy / Survival

Prompt-Based Modeling: A Civilization Born from Words

In Civil Jam, you don't start by fighting—you start by writing. A single prompt defines your civilization: from architectural style to unit preferences to overall development direction. From there, construction, production, and upgrades unfold across a random planet, and your unique civilization begins to grow.

Planetary Defense: Survival at Your Fingertips

Once your civilization takes root, the real challenge begins. Enemies (currently 5 types) spawn randomly around the planet. You must build, upgrade, and endure wave after wave of assaults. The longer you last, the higher your score.

Core Gameplay

• Construction & Production

  • Right-click to build structures (City, Tower, Factory, Airport, etc.), spending resources like Wealth, Population, and Tech.
  • Produce combat units, unlock and upgrade them to strengthen defenses.

• Scouting & Control

  • Left-click: inspect units/buildings.
  • Middle-click/drag/scroll: move and zoom the camera.
  • Right-click: open build menu and place structures.

• Survival & Scoring

  • No traditional "victory condition"—your score is the only metric

Key Features

• Prompt-Driven Civilization: Words shape your buildings, units, and tech path, letting you craft a stylized evolution route.
• Planetary Sandbox: Clean HUD (Buildings / Wealth / Population / Tech / Score) keeps information clear while you build and defend.
• Strategy × Survival: Construction, production, and upgrades all compete for attention—your sequencing and choices set the ceiling.
• Endless Challenge: No final stage, only higher scores and longer survival—perfect for chasing records and sharing runs.

Player Experience

Strengths

• Easy to Pick Up: Intuitive controls and camera system.
• High Replayability: Different prompts lead to varied development rhythms.
• Clear Progression: From the first tower to a full defense line, the leap in firepower is instantly satisfying.

Potential Weaknesses

• No Victory State: Pure "endless score-chasing," so long-term motivation depends on self-set goals.

Target Audience

Fans of strategy & survival, sandbox builders, and creative players.

Conclusion: Type a Prompt, Birth a Planetary Civilization

Civil Jam transforms text creativity into planetary order and firepower: you write, it grows; you build, it defends. There is no finish line—only higher scores and longer-lasting civilizations.
👉 Jump into Civil Jam and create your own planetary city today!