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No Steam player count has been recorded for Trackline Defense yet.
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Side-scrolling tower defense with 100 camps. Command 12×8 tank formations vs geometric hordes. Pick 1 of 3 upgrades after clearing each camp to snowball firepower. Mix 6 tank types freely. 4 difficulty tiers. Buy-to-play single-player, no IAPs, no ads, playable offline.
Steam store description