Hangman is a word puzzle game where you use topics, letter patterns, and careful guesses to uncover hidden words before making seven incorrect choices.
Recloak's free crafting puzzle where you combine air, earth, fire and water to discover more than 700 items. No real cheat build exists, but built-in hints help when you get stuck.
Recloak's free crafting puzzle where every item comes from a recipe of two others. Starting from air, earth, fire and water, you work out combinations to unlock more than 700 items.
Skribbl.io is a free browser drawing and guessing game. In a private room you can paste your own comma-separated custom words, and this page gives themed lists to copy.
WorldGuessr Free Alternative is a free, open source geography game. You get dropped somewhere on Street View, read the clues around you and pin your guess on the map.
WorldGuessr Geo Game Free Alternative is a free open source geography game. You land on a random Street View spot, read the clues around you and pin your guess on a world map.