Reveal.js - A framework for easily creating beautiful presentations using HTML

draw battle! - Competitive team drawing game with a frantic final round

Prezi - Welcome to Prezi, the presentation software that uses motion, zoom, and spatial relationships to bring your ideas to life and make you a great presenter.

Slidev - Presentation slides for developers

Google Slides - Create a new presentation and edit it with others at the same time — from your computer, phone or tablet. Free with a Google account.

Drawpoly - A drawing game bringing friends and family together