Interplanetary is a hard science fiction turn-based strategy artillery game, where players wage wars by developing their home planets and firing their planetary barrages.
"The main problem with planetary civilizations is that developing one may take more resources than a single planet can offer. Sometimes, even a planetary system is not enough. Especially if you have competition. In distant cosmos, two sister planets have reached a tense situation. The greed inherent to both civilizations has driven them to drastic measures: the building of massive cannons aimed directly at each other. Let the game of interplanetary artilleries begin!"