The publishers are offering free trials of the titles as millions of people stay home in a bid to help combat the coronavirus pandemic sweeping the globe.
The full game is available to sample, and any progression made during the trial period will carry over should players choose to purchase Odyssey on the same platform.
An online connection might be needed to start the game as a free player and Xbox One players will require an Xbox Live Gold subscription.
After that, players will be able to continue their journey by purchasing the full game from Steam.
Watch Dogs and The Stanley Parable are also currently free to download and keep from the Epic Games Store.