Screeps Beginner Roadmap
Follow a guided sequence from the first Creep to roles, upgrading, construction, and a complete first-room loop.
beginnerfirst Creeplearning path
SEARCH + DIAGNOSTICS
Start with the problem, not just a page title
Search discovers the most relevant guides, references, return codes, and tools. When the answer is still uncertain, continue through symptom diagnostics, API surfaces, and accepted Runtime Evidence.
Problem-solving path
Problem → likely cause → return code / API → guide / tool → accepted Runtime Evidence.
Symptom diagnostics → · API reference → · Return codes → · Runtime Evidence Hub →
Popular searches
Recommended English resources
Screeps Error Codes and Return Values
Look up common return codes before changing movement, spawning, market, construction, or Controller logic.
return codeERR_NOT_IN_RANGEERR_NO_PATH
Screeps Knowledge Base
Browse curated modules for Memory, spawning, economy, movement, Controllers, defense, resources, and debugging.
knowledgemodulessystems
Screeps Creep Body Calculator
Calculate Energy cost, spawn time, hits, carry capacity, and loaded movement speed in the browser.
body calculatorcreep costMOVE ratio
Screeps Room Snapshot Diagnostic
Check Spawn, workforce, Energy, Controller, construction, CPU, and bucket risks from a static room snapshot.
room diagnosticsCPU bucketController downgrade
English Screeps Guide Library
Browse all published English guides with filters for system, difficulty, content type, and topic.
guidesarticlesScreeps tutorials