At one point in time, Monolith Software (dudes behind Blood, and Matrix Online) were supposed to be working on an AR game, but it just never got finished. They had some screens and a couple of the songs redone and released as mp3s.
During the late 90s, Price intended to produce an MMORPG version of the game called Alternate Reality Online or ARO, and teamed with Monolith. The deal ended due to lack of funds to start serious development on the project. Monolith originally had funds, but needed the funds for existing games in the pipeline. Monolith tried to find an external publisher to fund the game, but the number of technical innovations, coupled with an unknown market for MMORPGs, made it difficult to find publishers willing to risk funding. The publication deal ended and the rights to the game were returned due to no funds. Monolith went on years later to create The Matrix Online.