| Level | Gold | Base time | Hitpoints |
|---|---|---|---|
| LV1 · Build | 1,000,000 | 12h | 1,500 |
| LV2 | 1,200,000 | 1d | 1,800 |
| LV3 | 2,400,000 | 2d | 2,100 |
| LV4 | 3,400,000 | 2d 12h | 2,400 |
| LV5 | 4,000,000 | 3d | 2,700 |
| LV6 | 6,000,000 | 4d | 3,000 |
| LV7 | 8,000,000 | 5d | 3,300 |
| LV8 | 9,500,000 | 6d | 3,700 |
| LV9 | 10,000,000 | 6d 12h | 4,000 |
| LV10 | 11,000,000 | 7d | 4,400 |
| LV11 | 16,000,000 | 8d | 4,800 |
| LV12 | 26,500,000 | 13d 12h | 5,100 |
| SC1 | 13,000,000 | 5d | 5,100 |
| SC2 | 8,500,000 | 7d | 5,300 |
LV0 means not built yet, so the first step includes the build. SC1 and SC2 are supercharge levels; they unlock at Town Hall 18 after the normal max level.
My Inferno Towers and X-Bows on MoonLight (#9280QPL8G)
All 3 Inferno Towers and all 4 X-Bows on this account are maxed. On my current war bases I set all 3 Inferno Towers to Multi Target and all X-Bows to Ground & Air. This way they cover both air and ground attacks. I upgraded the Infernos first and finished them before starting on the X-Bows.
On MoonLight my Infernos are set to Multi and my X-Bows to Ground & Air. These are the costs of getting a full set there. [keep text here]
Your Town Hall sets the highest level you can reach and how many of each you can build. The X-Bow unlocks at Town Hall 9. The Inferno Tower unlocks at Town Hall 10.
Most Town Halls add one level to each. The exceptions are Town Hall 11, which adds two Inferno levels, and Town Hall 13, which adds two X-Bow levels. You can build your fourth X-Bow at TH11 and your third Inferno Tower at TH12.
| Town Hall | Inferno Tower max | Inferno Towers | X-Bow max | X-Bows |
|---|---|---|---|---|
| TH9 | — | — | LV3 | 2 |
| TH10 | LV3 | 2 | LV4 | 3 |
| TH11 | LV5 | 2 | LV5 | 4 |
| TH12 | LV6 | 3 | LV6 | 4 |
| TH13 | LV7 | 3 | LV8 | 4 |
| TH14 | LV8 | 3 | LV9 | 4 |
| TH15 | LV9 | 3 | LV10 | 4 |
| TH16 | LV10 | 3 | LV11 | 4 |
| TH17 | LV11 | 3 | LV12 | 4 |
| TH18 | LV12 + 2 supercharges | 3 | LV13 + 2 supercharges | 4 |
The Inferno Tower unlocks at Town Hall 10. It has two modes, Single Target and Multi Target. Both modes have the same upgrade cost and time.
Building one Inferno Tower and taking it to level 12 costs 99,000,000 Gold and takes 59 days. Level 12 needs Town Hall 18 and costs 26,500,000 Gold and 13 days 12 hours on its own. From level 8, Multi Target hits 6 targets instead of 5.
At TH18 the two supercharges add 13,000,000 Gold (5 days) and 8,500,000 Gold (7 days). Some sources list level 5 at 4,200,000 Gold; our table uses 4,000,000.
| Level | Town Hall | Gold | Time | Hitpoints | Single DPS (start / 1.5s / 5.25s) |
|---|---|---|---|---|---|
| Level 1 (build) | TH10 | 1,000,000 | 12h | 1,500 | 30 / 80 / 800 |
| Level 2 | TH10 | 1,200,000 | 1d | 1,800 | 35 / 100 / 1000 |
| Level 3 | TH10 | 2,400,000 | 2d | 2,100 | 40 / 120 / 1200 |
| Level 4 | TH11 | 3,400,000 | 2d 12h | 2,400 | 45 / 140 / 1400 |
| Level 5 | TH11 | 4,000,000 | 3d | 2,700 | 50 / 150 / 1500 |
| Level 6 | TH12 | 6,000,000 | 4d | 3,000 | 55 / 160 / 1600 |
| Level 7 | TH13 | 8,000,000 | 5d | 3,300 | 65 / 180 / 1800 |
| Level 8 | TH14 | 9,500,000 | 6d | 3,700 | 80 / 210 / 2100 |
| Level 9 | TH15 | 10,000,000 | 6d 12h | 4,000 | 100 / 230 / 2300 |
| Level 10 | TH16 | 11,000,000 | 7d | 4,400 | 120 / 260 / 2600 |
| Level 11 | TH17 | 16,000,000 | 8d | 4,800 | 140 / 290 / 2900 |
| Level 12 | TH18 | 26,500,000 | 13d 12h | 5,100 | 155 / 330 / 3300 |
| Supercharge 1 | TH18 | 13,000,000 | 5d | 5,100 | 165 / 350 / 3500 |
| Supercharge 2 | TH18 | 8,500,000 | 7d | 5,300 | 165 / 350 / 3500 |
| Total | — | 120,500,000 | 71d | — | — |
The X-Bow unlocks at Town Hall 9. It fires at one target at a time. You can set it to Ground mode or Ground & Air mode. The mode does not change its damage, hitpoints or cost.
Building one X-Bow and taking it to level 13 costs 99,500,000 Gold and takes 59 days. Level 13 needs Town Hall 18 and costs 26,000,000 Gold on its own. All four to level 13 cost 398,000,000 Gold.
The two supercharges add 9,000,000 Gold (5 days 12 hours) and 7,000,000 Gold (7 days 12 hours) per X-Bow.
| Level | Town Hall | Gold | Time | Hitpoints | DPS |
|---|---|---|---|---|---|
| Level 1 (build) | TH9 | 1,000,000 | 12h | 1,500 | 60 |
| Level 2 | TH9 | 1,200,000 | 1d | 1,900 | 70 |
| Level 3 | TH9 | 2,400,000 | 2d | 2,300 | 80 |
| Level 4 | TH10 | 2,500,000 | 2d 12h | 2,700 | 85 |
| Level 5 | TH11 | 3,900,000 | 3d | 3,100 | 95 |
| Level 6 | TH12 | 5,000,000 | 3d 12h | 3,400 | 110 |
| Level 7 | TH13 | 6,000,000 | 4d | 3,700 | 130 |
| Level 8 | TH13 | 7,000,000 | 4d 12h | 4,000 | 155 |
| Level 9 | TH14 | 9,000,000 | 5d | 4,200 | 185 |
| Level 10 | TH15 | 9,500,000 | 5d 12h | 4,400 | 205 |
| Level 11 | TH16 | 10,000,000 | 6d | 4,600 | 225 |
| Level 12 | TH17 | 16,000,000 | 8d | 4,800 | 235 |
| Level 13 | TH18 | 26,000,000 | 13d 12h | 5,000 | 245 |
| Supercharge 1 | TH18 | 9,000,000 | 5d 12h | 5,000 | 255 |
| Supercharge 2 | TH18 | 7,000,000 | 7d 12h | 5,100 | 255 |
| Total | — | 115,500,000 | 72d | — | — |
You can switch modes for free at any time. The mode changes how the building defends, not what it costs to upgrade.
The beam gets stronger the longer it stays on one target. At level 12 it starts at 155 damage per second (DPS), rises to 330 after 1.5 seconds and to 3,300 after 5.25 seconds. It has a range of 9 tiles. Use it against Heroes, Golems and other tanks.
It hits up to 6 targets at once, or 5 below level 8. The damage stays steady. At level 12 that is 155 DPS on each target. It has a range of 10 tiles and works well against groups of small troops.
It shoots only ground units, but from up to 14 tiles away. Use it when your other defenses already cover air attacks.
It shoots both ground and air units. The range drops to 11.5 tiles. Damage is the same in both modes: 245 DPS at level 13.
Both buildings run on ammo: 1,000 rounds for the Inferno Tower (about 128 seconds of firing) and 1,500 for the X-Bow (about 192 seconds). They reload for free when you log in.
At Town Hall 18, you can add supercharges after you reach Inferno Tower level 12 or X-Bow level 13. Supercharge 1 raises the damage and Supercharge 2 raises the hitpoints.
| Defense | Supercharge 1 | Supercharge 2 | Both, per building |
|---|---|---|---|
| Inferno Tower | 13,000,000 Gold · 5d | 8,500,000 Gold · 7d | 21,500,000 Gold · 12d |
| X-Bow | 9,000,000 Gold · 5d 12h | 7,000,000 Gold · 7d 12h | 16,000,000 Gold · 13d |
Two rules to know: Hammer Jam discounts normal levels only, not supercharges. And when Supercell adds a new normal level to a defense, its supercharges are removed.
If you maxed these defenses at TH17, your three Inferno Towers are at level 11 and your four X-Bows are at level 12. At TH18, each building has one new level and two supercharges left.
| Upgrade | Gold | Total builder time |
|---|---|---|
| 3 Inferno Towers, level 11 to Supercharge 2 | 144,000,000 | 76 days 12 hours (25d 12h each) |
| 4 X-Bows, level 12 to Supercharge 2 | 168,000,000 | 106 days (26d 12h each) |
| Total | 312,000,000 | 182 days 12 hours |
Only the new normal levels (26,500,000 and 26,000,000 Gold each) get the Hammer Jam discount. For those seven upgrades alone, a 20% Gold Pass during Hammer Jam brings 183,500,000 Gold down to 73,400,000.
All of this is Gold, the same as your Walls. A simple plan: start an Inferno Tower or X-Bow upgrade whenever your Gold storage is full, and put the Gold left over into Walls.
Building one Inferno Tower and upgrading it to level 12 costs 99,000,000 Gold and takes 59 days. With both TH18 supercharges, the total is 120,500,000 Gold and 71 days.
Up to 3 Inferno Towers (two at TH10 and TH11, three from TH12) and up to 4 X-Bows (two at TH9, three at TH10, four from TH11).
Town Hall 18 for both. At TH17 the max is level 11 for the Inferno Tower and level 12 for the X-Bow.
No. Changing modes is free, and upgrade costs, times and hitpoints stay the same.
Single Target is stronger against one big target, like a Hero or a Golem, because its damage ramps up. Multi Target is better against many small troops at once.
No. Hammer Jam discounts normal levels only, not supercharges.
If your TH17 base is maxed, all seven buildings need 312,000,000 Gold for the new level and both supercharges. That is 182 days 12 hours of builder time before boosts.
Base values checked 8 November 2026 against the Clash of Clans Wiki pages for the Inferno Tower and X-Bow, Supercell's September update notes (supercharge rules) and the Hammer Jam rules.
