Session Respect Score
"Complex RTS requiring sustained focus and strategic planning skills."
Minimum session
30 min
Pausability
No pause
Resume friendliness
Hard to resume
FOMO pressure
Zero FOMO
Focus required
Intense
Session structure
Open-ended
Where to play
Similar games
Platforms
About
Zero-K (ZK; formerly known as Complete Annihilation and CA) is a free multi-platform open source real-time strategy computer game. Initially based on content from Total Annihilation on the open source Spring Engine, it was forked and all proprietary content replaced, and evolved into a completely new game with unique features. Among the games powered by the Spring game engine, Zero-K is particularly notable for its extensive use of Lua scripting for interface and gameplay changes/enhancements, as well as unique RTS concepts such as a flat technology tree.
Media
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Community Session Data
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Context Tags
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Platform Notes
Does it actually work well on your platform? Community tested.
Zero-K — Session FAQ
- How long does a session of Zero-K take?
- The minimum meaningful session for Zero-K is approximately 30 minutes. This is the shortest play window where you can make real progress or have a satisfying experience, based on community data.
- Can you pause Zero-K?
- Zero-K cannot be paused mid-session (it runs in real-time or is multiplayer). Plan for a full session window before starting.
- Does Zero-K pressure you to keep playing?
- Zero-K has no FOMO mechanics — no timed events, live content, or narrative cliffhangers. You can stop whenever you want without feeling like you're missing out.
- What is Zero-K's Session Respect Score?
- Zero-K has a Session Respect Score of 5.2/10. This score combines minimum session length, pausability, FOMO level, and pickup friendliness into a single metric for how well the game fits busy schedules.