Trireme — Wiki · Kings By Dawn

Role and stats #

Line breaker: ×1.5 damage against Biremes. These are base stats before researched bonuses.

Role: Line breaker: ×1.5 damage against Biremes.
Branch: Navy
Recruit at: Navy level 13
Cost per unit: 10,078 Wood, 2,015 Metal, 806 Food
Base training: 25m
Health / Armor / Damage: 1,800 / 45 / 140
Counters: ×1.5 versus Bireme
Armor ignored: 0%
PvP cargo capacity: 875

Recruitment unlock: Trireme Engineering: University level 13, 16,900 Crystals, 28h 10m. Navy details.

Training at each facility level #

One batch is active per facility; additional batches wait in order. Times below are per unit, before active VIP; lower facility levels cannot recruit this unit.

Trireme training times, before VIP
Facility level	Time per unit	Change from base
13	19m	−24%
14	18m 30s	−26%
15	18m	−28%
16	17m 30s	−30%
17	17m	−32%
18	16m 30s	−34%
19	16m	−36%
20	15m 30s	−38%
21	15m	−40%
22	14m 30s	−42%
23	14m	−44%
24	13m 30s	−46%
25	13m	−48%

Every research upgrade #

Each rank gives another 5% to its own stat; ranks I–V total +25% per stat. Research is account-wide, permanent, and completes offline.

Trireme individual research projects
Upgrade	Stat	Rank bonus	Resulting Regular stat	University	Extra facility gate	Crystal cost	Time	Prerequisite
Hull Reinforcement I	Health	+5% total	1,890	13	Navy lv 1	200	30m	Trireme Engineering
Hull Reinforcement II	Health	+10% total	1,980	13	Navy lv 1	650	2h	Trireme Engineering, Hull Reinforcement I
Hull Reinforcement III	Health	+15% total	2,070	13	Navy lv 1	1,350	4h 30m	Trireme Engineering, Hull Reinforcement II, Veteran
Hull Reinforcement IV	Health	+20% total	2,160	18	Navy lv 1	4,550	8h	Trireme Engineering, Hull Reinforcement III
Hull Reinforcement V	Health	+25% total	2,250	25	Navy lv 1	13,600	12h 30m	Trireme Engineering, Hull Reinforcement IV, Elite
Bronze Plating I	Armor	+5% total	47.25	13	Navy lv 1	200	30m	Trireme Engineering
Bronze Plating II	Armor	+10% total	49.5	13	Navy lv 1	650	2h	Trireme Engineering, Bronze Plating I
Bronze Plating III	Armor	+15% total	51.75	13	Navy lv 1	1,350	4h 30m	Trireme Engineering, Bronze Plating II, Veteran
Bronze Plating IV	Armor	+20% total	54	18	Navy lv 1	4,550	8h	Trireme Engineering, Bronze Plating III
Bronze Plating V	Armor	+25% total	56.25	25	Navy lv 1	13,600	12h 30m	Trireme Engineering, Bronze Plating IV, Elite
Naval Armaments I	Damage	+5% total	147	13	Navy lv 1	200	30m	Trireme Engineering
Naval Armaments II	Damage	+10% total	154	13	Navy lv 1	650	2h	Trireme Engineering, Naval Armaments I
Naval Armaments III	Damage	+15% total	161	13	Navy lv 1	1,350	4h 30m	Trireme Engineering, Naval Armaments II, Veteran
Naval Armaments IV	Damage	+20% total	168	18	Navy lv 1	4,550	8h	Trireme Engineering, Naval Armaments III
Naval Armaments V	Damage	+25% total	175	25	Navy lv 1	13,600	12h 30m	Trireme Engineering, Naval Armaments IV, Elite

Veteran and Elite improvements #

Research the rank, then convert existing stationed units in their recruiting building. Conversion costs below are per unit, in addition to the one-time Crystal research cost. Veteran adds +20% base Armor and Damage; Elite adds +40%. Health is unaffected by equipment.

Trireme equipment unlocks and conversion costs
Conversion	Facility level	Rank research	University	Research Crystals	Research time	Research prerequisites	Conversion cost / unit
Regular → Veteran	10	Veteran	13	650	2h	Hull Reinforcement II, Bronze Plating II, Naval Armaments II	12,899 Metal, 403 Food
Veteran → Elite	18	Elite	18	4,550	8h	Hull Reinforcement IV, Bronze Plating IV, Naval Armaments IV, Veteran	19,349 Metal, 605 Food

Trireme Regular, Veteran, and Elite stats
Equipment	Stat research	Health	Armor	Damage
Regular	No stat research	1,800	45	140
Regular	All three stat tracks rank V	2,250	56.25	175
Veteran	No stat research	1,800	54	168
Veteran	All three stat tracks rank V	2,250	65.25	203
Elite	No stat research	1,800	63	196
Elite	All three stat tracks rank V	2,250	74.25	231

Trireme improvement times before active VIP
Facility level	Regular → Veteran / unit	Veteran → Elite / unit
10	10m 15s	Requires level 18
11	10m	Requires level 18
12	9m 45s	Requires level 18
13	9m 30s	Requires level 18
14	9m 15s	Requires level 18
15	9m	Requires level 18
16	8m 45s	Requires level 18
17	8m 30s	Requires level 18
18	8m 15s	12m 22.5s
19	8m	12m
20	7m 45s	11m 37.5s
21	7m 30s	11m 15s
22	7m 15s	10m 52.5s
23	7m	10m 30s
24	6m 45s	10m 7.5s
25	6m 30s	9m 45s

Learn the system #

Planning an army? Add Trireme to the Army Planner to total costs, training time and cargo for a whole force.

Rules reference. Values come from the game rules at revision 999310651f (snapshot e5f090b681, checked 5 October 2026). Base values exclude conditional bonuses such as VIP and active monuments. Numbers can change between playtest updates.