Together with Graeme Devine, he co-founded Trilobyte, where he created the highly commercially successful games The 7th Guest and The 11th Hour.

After leaving Trilobyte, he co-founded Aftermath Media, where he released the interactive movies Tender Loving Care and Point of View.

Prior to becoming involved in the computer gaming industry, he worked as an artist in more traditional media between the late 1960s and early 1980s.

[2] Landeros and Devine enjoyed success at Trilobyte with their groundbreaking CD-ROM game The 7th Guest, which sold over 2 million copies.

In 2010 he re-launched Trilobyte who are working on re-releasing versions of its classic games, including The 7th Guest, The 11th Hour, for use on iPhone and iPad.