Polygon Invasion TD: Launch Notes & Opening Strategy

April 28, 2026 · ArcadeDeck Team · #news #polygon-invasion-td #tower-defense #strategy

Polygon Invasion TD is the newest title on ArcadeDeck and the platform's first dedicated tower defense entry. The Polygon Dimension has breached our reality; geometric invaders march in endless formation; you build, upgrade, and hold the line. The leaderboard sorts by Peak Wave first and total Kills as the secondary tiebreaker — meaning a player who pushes deeper but kills less still beats a grindier run. That single design choice colours every decision below.

What's in the launch build

The launch ships with the full core loop: strategic tower placement, multiple tower types with upgrade paths, and an endless wave structure that scales indefinitely. Boss waves break the rhythm with high-HP single targets that punish splash-only setups, and swarm waves do the inverse — punish single-target-only setups with sheer numbers. Mouse and touch controls are both first-class, and the build runs cleanly on mid-range mobile.

Why TD fits the ArcadeDeck format

Most browser TDs are either too short to feel meaningful or too long to fit a casual session. We tuned wave pacing so that the first ten waves take 4-6 minutes — enough to learn the map, commit to a tower mix, and see whether your read was right. If you misplay the early game, you feel it by wave 8 and can restart without losing 30 minutes. If you play well, the run scales up cleanly past wave 20 and the leaderboard becomes a question of how far you can push before a single mistake compounds.

Opening strategy: the first ten waves

Three habits separate first-session players (typically peaking around wave 5-7) from players who reliably clear wave 10 on their second or third attempt.

1. Read the chokepoint before you place anything

The map has one or two natural chokepoints depending on enemy path. Don't drop your first tower until you've identified them. A first tower placed at the chokepoint kills more enemies than two towers placed mid-path. The early-game economy is tight — a single misplaced tower in wave 1 is the difference between affording an upgrade by wave 4 or scraping through to wave 6 under-levelled.

2. Mix tower types early, not late

The most common new-player mistake is going all-in on one tower type because it felt strong on wave 2. Single-target towers melt tanks and starve on swarms; splash towers shred swarms and stall on tanks. If you reach wave 6 with a pure single-target setup, the next swarm wave will leak. Commit to at least one of each type by wave 4, even if it means delaying an upgrade.

3. Save resources for emergency upgrades

Don't spend down to zero between waves. Keep a reserve roughly equal to the cost of a mid-tier upgrade. When a boss wave starts and you realise your damage is short, that reserve is the difference between a clutch upgrade mid-wave and a leaked life. The leaderboard rewards Peak Wave above all else — surviving wave 12 by one HP is worth more than dying cleanly on wave 11 with a full bank.

What we're watching post-launch

Two things on our radar over the next two weeks. First, wave-progression telemetry: where do players consistently die, and is the curve smooth or does one specific wave act as a wall? If we see a spike at, say, wave 14, we'll rebalance that wave specifically rather than flatten the whole curve. Second, tower-mix data: are players converging on one optimal mix, or is there genuine strategic variety? If everyone runs the same loadout by wave 10, that's a tuning problem and we'll address it in a patch note here.

Surviving wave 12 by one HP is worth more than dying cleanly on wave 11 with a full bank.

Get on the board

The leaderboard is empty as of launch — early entries will set the bar for the April-May Hall of Fame cycle. If you crack the top three this week, expect a feature in the next monthly recap. Bug reports and tuning feedback go to help@arcadedeck.net; the most useful reports are wave-specific ("wave 13 felt unfair because…") rather than general impressions.

See you on the leaderboard.

Play the games

• Polygon Invasion TD — A fast-paced tower defense game where you defend against waves of geometric invaders.

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