- Doctrine, a second progression tree.
- Research and Doctrine are now also reachable from the main menu under Progress, as tabs.
- Supply crates drift on the open sea. Click one for money, steel and timber. Never more than three at once.
- Six stats the meta layer could never reach: blast radius, shell velocity, incendiary, snare, island integrity, repair.
- Patch notes now appear in the News panel on the title screen.
- Enemy fleets cross open water at cruising speed and only slow in front of your guns. 25 to 37 percent less approach time.
- Bigger opening: 560 money, 165 steel, 230 timber.
- Base income raised by more than half, and it now grows with the wave number.
- Waves come faster: 28 seconds instead of 40, first wave at 16 instead of 25.
- Bigger waves from wave 1: six hulls instead of four.
- New hull types from wave 4 instead of wave 10. Every roster band moves four waves earlier.
- The mortar is buildable from wave 1 and costs no research.
- Support actions are free. Only the cooldown gates them now.
- Hold bounty up from 35 to 55, call wave bonus raised.
- Unspent research is carried into your next run instead of sitting in an unspendable bank.
- Bigger, readable doctrine grid that actually scrolls sideways.
- Salvage crane output raised to match the new base income.
- Repairing a structure could take health away instead of adding it. Anything built with structure research was truncated to its base value by the first repair it received.
- Large UI frame time cost: every build tile rendered its own 3D scene to an offscreen texture 60 times a second, for a picture that never changes.
- The minimap redrew itself completely every frame, fog grid included, whether or not anything had moved.
- Several closed menus were still doing full work every frame while shut.
- The research tree showed a balance of 0 in the main menu and priced every node as unaffordable, because it read the run purse instead of the bank.
- Three of the four support actions required oil, which made them unusable without an oil platform.
- The foam trail behind every ship.
- Support action costs.