Many players in the Epoch of Stars often find their advancement stalled due to a lack of troop module quantities. So, how to upgrade troops in the Epoch of Stars becomes a significant issue. In fact, the game's troops are divided into six tiers from T1 to T6. Each tier upgrade requires equipping 5 modules of the same star rating, and the module synthesis mechanism is complex (e.g., 3 T1s synthesize into 1 T2), leading to a huge resource gap. New players often fall into the predicament of low efficiency in farming, and even waste materials by mistakenly enhancing non-main troops.

In fact, the core sources for upgrading troop modules include interstellar trade dispatches, ladder challenges, and planet exploration. Daily interstellar trade missions must be completed, using which can increase the single dispatch reward to 4 T2 module boxes, combined with a 100% success rate mechanism, ensuring a stable daily acquisition of 20-28 modules. In the early stages of ladder challenges, each 5 levels rewards 1 module box, increasing to 2 in later stages. It is recommended to advance at least to level 50 weekly to accumulate first-time clearance resources. Completing the 7th and 10th stages of planet exploration will respectively grant 10 T2 boxes, prioritizing high-difficulty stages. Common players should avoid blindly opening boxes and accumulate modules based on the needs of main troops (e.g., selecting Stealth Assassin Troopers for Rapid Fire teams).

Void Original Stones and Dark Essence are the core resources for upgrading the city-building system, which need to be prioritized in the Command Center (to increase troop capacity) and the War Center (to unlock skill level caps). The Troop Research Lab suggests focusing on upgrading small troops (such as Ferocious Dog Warriors, Stealth Assassin Troopers), as Rapid Fire teams have the highest efficiency in pioneering, and can trigger a 20% damage increase when reaching T3. If your main force is a Reflect Damage lineup, then prioritize enhancing the defensive form of Titan Guards, increasing damage resistance by 30% through the research lab. Note to reserve Primal Crystals for hero skill upgrades to avoid conflicts with troop resources, thus wasting resources.

Limited-time events like the Interstellar Treasure are the way to obtain the largest number of modules, with common players choosing the 88 draw tier (about 5808 credit points) to guarantee 12 T3 modules. Mid-level spenders can directly synthesize T5 troops by maxing out 1798 draws. Seasonal tasks refresh weekly, and completing Nest objectives can provide additional module boxes.

The essence of troop tier promotion is a game of resource conversion rates. Focus on the T2-T3 transition in the early stages, and use activities and city building to unlock qualitative change nodes in the mid-game (such as a 30% increase in all attributes at T4). In the late game, specialize in the passive abilities of main troops. Every module synthesis and upgrade, unless there is an urgent need to boost combat power, should be planned for the long term.