One teacher's needs are little bit different from another's so this list covers a fairly wide range of options.
TinyTap is a good iPad and Android app for creating your own review games based on pictures and diagrams. You can create games in which students have to identify parts of picture or diagram. You can also build games in which your students have to assemble a puzzle by dragging and dropping pieces into place (the puzzle does not have to follow the jigsaw puzzle format). Click here to see a selection of games that teachers have made and published through TinyTap.
ClassTools.net offers a handful of templates for building your own educational games. Through ClassTools.net you could build a Pac-Man style game, a Connect Four style of game, or build a QR code treasure hunt for your students.
Socrative and Kahoot continue to be my two favorite platforms for hosting fast-paced review quizzes. Both services allow you to create quizzes and host quizzes that your students complete through their mobile devices or laptops. Students can receive instant feedback on each question (if you allow that option) and a final score. In both tools you can include pictures as part of your questions. Socrative allows you to host team activities that they call "space races."
If a Jeopardy-style game is what you're after, eQuizShow, Jeopardy Rocks, and FlipQuiz are worth giving a try. None of the three services requires you to download any files to create your activities. All three services provide text-based questions for free. eQuizShow and FlipQuiz support picture-based questions if you upgrade to their premium plans. Click here to learn more about FlipQuiz, eQuizShow, and Jeopardy Rocks.