01 / INDUSTRY
The Foundry
Bring the freight line back to life. Earn 40 extra salvage on every later clear, then meet armored reinforcements on a short western approach.
+4 reactor capacity · 3 new build sockets

Void Sentinel / A new chapter
The city has gone quiet. Something beyond the wall hasn’t. Build your defenses. Wake a district. Keep Lastlight alive.
Free browser playable · No account required · In active development
05
Encounters
06
Weapons
01
District to restore
08
Commander ranks
After the second encounter
Restoring a district gives you more room to build—and gives the enemy another way in. Preview the route, read the threat, then make a choice that lasts for this defense.
01 / INDUSTRY
Bring the freight line back to life. Earn 40 extra salvage on every later clear, then meet armored reinforcements on a short western approach.
+4 reactor capacity · 3 new build sockets
02 / PRECISION
Open the eastern skyway. Once per encounter, expose the nearest threat for 35% more damage for six seconds. Fast Rift Skimmers test your coverage.
+4 reactor capacity · 3 new build sockets
Before encounter four / Optional Signal
Send a Signal to draw one elite Carapace and two Rift Skimmers onto the primary route after the ordinary wave. Read the complete forecast, then commit. Survive the encounter with your core alive for 80 extra salvage on clear—or decline and keep the ordinary defense. There is no countdown.
The elite has 460 health, six armor and the familiar Carapace pull resistance. Earn weapon upgrades that work together: fracture its armor with Railbreaker and ignite it with Flashpoint. The extra enemies can yield up to 56 salvage from kills, separately from the survival bonus. A leak still permits that bonus if your core survives.
The choice is saved for this defense. Defeat grants no clear bonus; retry restores the encounter’s preparation, including your choice and upgrades. Accepting or declining grants no Commander XP. Older defenses keep their original rules.
Now playable / First discoveries
Your attunement journal records discoveries that stay with your Commander across builds, respecs and retries. Open it with J or the Journal button, even during a defense. Combat waits while you read the complete chains and their next objectives.
Restore the Observatory and finish all five encounters. Qualifying saved victories from earlier versions count too. Your next objective is restoring its circuit and interrupting the exposed disruptor, a later step that is not yet playable.
Send the Signal and survive encounter four with the core alive. An elite leak still qualifies if you survive; declining or losing does not. The discovery stays yours even if the next encounter ends in defeat. The Capacitor Yard and its rift surge await in a later release.
These discoveries add no extra XP or salvage. Aegis Core still requires the future Warden clear and remains undiscovered. Aligned, Attuned, deeper talent rows, trials and Black Star stay locked. The journal shows all three four-step chains and clearly marks later objectives as not yet playable. Progress stays in this browser on this website.
Six weapons. One power budget.
Give every socket a purpose. Control a column with Pulse Halo, ignite fractured armor with an Incinerator, or invest in an Extractor to fund the next encounter. Each weapon earns a choice of two signature upgrades through its contribution. Pause, read the field, and build weapons that help each other.
Gather the wave. Fracture armor. Detonate the choke point.
Mark the vanguard. Conduct an arc. Finish the survivor.
Overdrive your defense. Expose a threat. Echo through its escort.

Rapid fire · 2 power

Armor piercing · 3 power

Area control · 2 power

Persistent heat · 2 power

Precision removal · 3 power

Clear income · 1 power
Play with a keyboard and mouse, or use the on-screen controls. Touch players select a socket, then confirm the build. Your browser keeps a separate checkpoint for each defense; saving during combat returns you to that encounter’s preparation.
Best battlefield view on desktop or tablet. Local saves stay in this browser and website. New defenses use the six-weapon arsenal; older saves keep their original rules. The current playable has no audio.
Now playable / Choose your command
Earn Commander ranks from cleared encounters. Spend common points on eight live talents: arrive with more salvage, reinforce the core, repair damage, or give your defenses a priority target. Choose one specialization for each build. Bastion’s Armored Heart adds core integrity, while Brace reduces core damage by 35% for up to six seconds. Stormwright’s Charged Coils strengthens Gauss direct hits; Grounding Spike marks a chosen threat for five seconds and fractures its armor for up to 3.5 seconds. Riftbinder’s Heavy Space strengthens earned Undertow pulls; Rift Anchor slows threats in a previewed route region for three seconds. Save five named builds, respec freely, and equip your choice for the next defense.
Coming next: additional lanes for all three specializations, later attunement steps, a seven-encounter Cinder Dock with the Warden boss, then two new sectors and attunement trials. The full design has 81 nodes.
Explore the talent designRanks 1–8, eight common talents and the first Bastion, Stormwright and Riftbinder paths are in the game. Common and specialization points have separate budgets. Brace has a 35-second combat cooldown; Grounding Spike has a 25-second combat cooldown. Rift Anchor has a 30-second combat cooldown and a 100-unit radius: 30% slow, or 35% with Gravity Lens. All three cooldowns carry between encounters. The second Thick Bulkheads, Deep Charge and Gravity Lens ranks require points beyond the current cap. This separate full-tree planner remains a preview.
A game, built in the open
I’m building Lastlight by directing AI collaborators through design, implementation, playtesting, and review. The original Void Sentinel was the starting point. This new chapter rebuilds its combat and saves around a more deliberate question: what are you willing to awaken to keep the city alive?
The game uses React, TypeScript, Vite, and Phaser. Its new artwork was created with Reflector and Image 2. Each expansion is tested through complete runs and independent code review before it joins the playable.
Visit the design roomCinder Dock / First defense