Change Gamemode, Difficulty, PvP and Hardcore on Your Minecraft Server

Change the game options

1. Open your world and go to Settings → Game options.
2. Pick Gamemode (Survival, Creative, Adventure, Spectator) and Difficulty (Peaceful, Easy, Normal, Hard).
3. Tick or untick Hardcore, PvP on and Whitelist on, and set Max players.
4. Click Save options. The server restarts and disconnects players.

Hardcore

Hardcore is survival with one life. Death puts the player in spectator mode, and difficulty is locked to Hard.

Max players

Each plan has a player limit, shown under Max players.

One player's gamemode

The Gamemode setting is the default for players. To change one player, make yourself an operator (how to OP), then use /gamemode creative Name in game, or gamemode creative Name in Console.