This useful site has many powerpoint templates of popular games (e.g. Jeopardy, WWTBAM, Deal or No Deal).

This popular site enables a spreadsheet to be quickly transformed into various games or gamification tools (e.g. random name picker, matching game, crossword puzzles).

This site has several useful powerpoint templates for visually appealing games.

This visual game creator enables you (or your students) to create games without coding.

If you'd like to create a text-based game, then Twine is the platform for you.

This scratch-like builder allows you to quickly create a 2D game.

This site allows you to create game-based learning experiences, unrestrained by templates or pre-determined formats.

Quickly turn a series of questions into a game with this site.

This site allows you to easily build scavenger hunts.

This site helps teachers looking to gamify behavior change and engage students on a social-emotional level.