This game would at first glance appear to be based only on canon sources.
"first journey of the apostle Paul as described in the Book of Acts"
The game does not seem to reference "works variously defined as apocryphal, esoteric, spurious, heretical, pseudepigraphal, or otherwise uncanonical works" or "include characters, events, any related to these works."
If the game [i]elaborates[i/] on Paul's journey to the third heaven or depicts any of the Acts of Paul script, then it is likely the tag would apply. Reguardless, the rest of the game is based on canon.
Paul's First Journey myth not canon?