International Software Development was a small German studio best known for 1989’s maritime business simulation Ports of Call. Designed by Rolf-Dieter Klein and Martin Ulrich, the game puts you in charge of a global shipping line—buying freighters, signing cargo contracts and personally guiding vessels through storm-tossed harbours or daring rescue missions. Its smart blend of spreadsheet-style strategy and tense arcade interludes first won fans on the Amiga, then docked on DOS and eventually sailed to modern platforms. Ready to test your captain’s nerve? Play the original DOS edition right here, in your browser, entirely free—no downloads, just set sail and start trading the seven seas.
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Ports of Call
Simulation gamePorts of Call is a classic maritime business simulation first launched by Aegis Interactive. The game places you at the helm of a fledgling shipping company, balancing route planning, cargo choices, and tricky harbor maneuver...