Play Operation Combat Ii: By Land, Sea & Air Online

Operation Combat II: By Land, Sea & Air is a turn-based strategy game released in 1993 for the MS-DOS platform. Developed and published by Merit Studios, Inc., the game presents its battlefield from a bird's-eye, isometric perspective. It belongs to the turn-based wargame genre, focusing on combined arms warfare across multiple environments.

Players command a military force with the singular objective of destroying the enemy's headquarters. Each match begins with the selection of one of six distinct battle terrains, setting the stage for the conflict. The core gameplay is structured around timed turns, with each player allotted 240 seconds to issue orders before control passes to the opponent. Players manage a variety of land, sea, and air units, coordinating their movements and attacks on the isometric map using a point-and-click interface hybridized with menu commands. Progression is measured through the strategic depletion of enemy forces and the eventual assault on their central base, with matches playable against either a computer-controlled adversary or another human via modem or direct cable connection.

The game's systems emphasize combined arms tactics, requiring players to utilize the different capabilities of their available units. The visual presentation uses 256-color VGA graphics to depict the units and terrain, accompanied by basic sound effects for auditory feedback. The timed turn structure adds a layer of pacing pressure to the strategic decision-making process, as players must plan and execute their maneuvers within the fixed limit for each round.