Steam: https://store.steampowered.com/app/5335290/DiscPods_Demo/

» DiscPods

Google Play: https://play.google.com/store/apps/details?id=io.EmeraldWizard.Gobsmith

App Store:

» Gobsmith

Google Play: https://play.google.com/store/apps/details?id=io.EmeraldWizard.MathOn&pcampaignid=web_share

App Store: https://apps.apple.com/ae/app/mathon/id6744154310

» MathOn

Steam: https://store.steampowered.com/app/3120980/Stargazer/

» Stargazer