The Teletext Games service is available for Sky subscribers, accessible via the text button when watching Channel 4.
Content is offered as multi-screen, video-based and console-style games and includes fruit-machine style games and virtual horse racing, provided by DITG's gaming division. Users can play for free or place a bet and gamble.
Participants will be encouraged to register and play via cross-promotion from Teletext's other platforms, including half-page as on analogue TV, digital terrestrial television and banner ads on Teletext.
Damian Cope, managing director of DITG's gaming division, said: "This partnership enables both companies to focus on their core strength of producing successful and entertaining television services."
He added: "Teletext was the original innovator when it came to recognising television's potential for being much more than a passive 'viewing vehicle'."
Neil Johnson, director of commercial development at Teletext, said: "We are delighted to be combining the strengths of DITG and Teletext to bring Channel 4 viewers this new interactive gaming experience, further adding to the wealth of news and entertainment available behind the text button on Channel 4."
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