Press ENTER during gameplay, then enter one of the cheats listed below to activate it:

1000 more resources: cheat resource all+1000
Adjust damage: cheat damage (name or no entry)(+ or -)(number)
AI state: cheat ai (on, off or debug)
Alliance with nation: cheat ally (nation name)
Change explore: cheat explore (normal, explored, all)
Defeat nation: cheat defeat (nation name)
Deploy units: cheat deploy
Drop nuke at pointer: cheat nuke
Drop Wild Bird at pointer: cheat bird
Encounter with nation: cheat meet (nation name)
Finish building or next item: cheat finish
Kill all selected objects: cheat die
Make all players human: cheat sandbox
Pack units: cheat pack
Peace with nation: cheat peace (nation name)
Put building at pointer: cheat insert (number)(type)(who=RED)(x,y)
Put unit or building at pointer: cheat add (number)(type)(who=RED)(x,y)
Put machine guns around human capitals: cheat safe
Set difficulty: cheat diff (0-5)
Show achievements: cheat achieve
Show/change commerce level for nation: cheat commerce (number)(nation name)
Show/change library tech levels for nation: cheat library (number)(nation name)
Show/change military level for nation: cheat military (number)(nation name)
Show/change nation age: cheat age (number)(nation name)
Show/change resource: cheat resource (name)(goodtype or all)(+ or -)(number)
Show/change science level for nation: cheat science (number)(nation name)
Show/change technology: cheat tech (name)(tech or all)(on or off)
Show combat ranges: cheat ranges (0 or 1)
Show full map: cheat reveal (on or off)
Toggle computer control off: cheat human (name)
Toggle computer control on: cheat computer (name)
Toggle pause: cheat pause (0 or 1)
Turn encounter off with nation: cheat unmeet (nation name)
Victory for nation: cheat victory (nation name)
War with nation: cheat war (nation name)