| Deadly Tide | |
| Developer: | Rainbow Studios |
| Publisher: | Microsoft |
| Producer: | Earl Jarred |
| Programmer: | Mark DeSimone |
| Composer: | Mark Stratford |
| Platforms: | Windows |
| Genre: | Rail shooter |
| Modes: | Single-player |
Deadly Tide is a rail shooter video game developed by Rainbow Studios and published by Microsoft exclusively for Microsoft Windows.
In the year 2445, a race of hostile aquatic aliens arrives on Earth. Four of their ships sit at the bottom of the Pacific Ocean, raising sea levels continuously for 5 years until almost 88% of the surface is submerged. In order to effectively fight the aliens, the fictional Earth Ocean Alliance develops the "Hydras", one-man submarine fighter craft.
The player takes on the role of the last remaining fighter pilot. The objective is to travel through the alien-infested seas and fend off the targets long enough to complete the missions.
The game ends with the player character planting a bomb inside an alien ship and driving away the remaining aliens. However, the player is trapped inside one of the vessels, and his fate is uncertain as the game concludes.
As in Rainbow Studios' other rail shooters The Hive and Ravage D.C.X., the player shoots targets that appear as live sprites in front of a full-motion video background. Occasionally, the video will stop and switch to a still background, which the player can pan around 360 degrees. The weapons include unlimited standard lasers and a limited supply of bombs.
In some levels, the player moves on foot and not in a vehicle. The gameplay, however, remains essentially unchanged.