You are able to raise your game difficulty level from EASY to MEDIUM and to HIGH only if you have completed some in-game missions and complete the actual game in 2000 as the winner. If you completed in-game missions but you lost the actual game the missions won’t be counted as achieved.
There are four in-game missions:
EASY LEVEL – SPACE RACE. To archive this mission you need to develop all space technologies and finish the game as the winner.
EASY LEVEL – ONE AFRICA. To archive this mission you need to align all African countries to your sphere of influence (to make them all pro-Soviet if you play as USSR or pro-American if you play USA) and finish the game as the winner.
MEDIUM LEVEL – 50 GOOD SCORES. To archive this mission you need to finish the game as the winner with 50 or more scores on MEDIUM level of difficulty.
MEDIUM LEVEL – COUP YOUR ENEMY. To archive this mission you need to complete a coup of your enemy country (USSR or USA) any time during the game on MEDIUM level of difficulty and finish the game as the winner.
