You don't need explosions to keep the action intense. Sky Odyssey is a beautiful game from days long gone.
Fair enough. By today's standards, Sky Odyssey offers technically weak graphics, limited sound quality, and a menu system not much easier to maneuver through than Windows 3.1 (ok.. that was unnecessarily harsh), and yet it remains far more than the sum of its parts. Weather you're flying through vicious weather, narrow canyons, or just enjoying a relaxing free-flight over the ocean, Sky Odyssey captures a certain artistic quality that is too abstract to put into words. Simply put, the experience as a whole far outclasses the individual parts of the game.
Sky Odyssey is quite challenging, offers a decent variety of aircraft and unlockables, and a satisfying, multiple-path quest mode as well as several smaller game modes. You won't find any explosions keeping you on your toes in this game, as it is an arcade-style flying simulator and not a combat action game. Nevertheless, the realistic feel of the flight physics, be they your aircraft's handling or the effects of wind, coupled with the tricky maps you're expected to navigate, offer more than enough edge-of-seat excitement to last you many an evening.
It's lasted me many an evening for almost seven years now.