How big are the units in ROME: Total War, and can I increase their size?

ROME: Total War has a cosmetic Unit Size setting that dictates how many soldiers-per-unit appear on-screen in battles. The default unit sizes for each device are listed below:

Default Unit Size
20 80
Google Pixel Google Pixel 2
Google Pixel XL Google Pixel 3
Huawei Honor 8 Google Pixel 3 XL
Huawei Honor 10 Google Pixel 3a
Huawei Nexus 6P Google Pixel 3a XL
Huawei Mate 10 Google Pixel 4
Huawei Mate 20 Lite Google Pixel 4 XL
LG V30+ HTC U12+
OnePlus 3T Huawei Mate 20
Samsung Galaxy S7 Meizu X8
Sony Xperia Z5 Dual Motorola Moto Z2 Force
Xiaomi Mi5 Nokia 8
Xiaomi Redmi Note 5 OnePlus 6T
OnePlus 5T
OnePlus 7
Razer Phone
Samsung Galaxy Note8
Samsung Galaxy S8
Samsung Galaxy Note9
Samsung Galaxy S9
Samsung Galaxy S10
Samsung Galaxy S10+
Samsung Galaxy S10e
Samsung Galaxy Tab S4
Sony Xperia XZ1
Sony Xperia XZ2 Compact
Xiaomi Mi6
Xiaomi Pocophone F1

In the Options overlay for ROME: Total War, you can change the Unit Size from Recommended to Larger, which will double the Unit Size for your device.

To change the Unit Size setting, follow the steps below. Please note: changing from Recommended to Larger will impact the game's performance. It is a purely cosmetic setting, and does not grant you any more units in battle. For the best experience, we recommend that you do not change this setting.

  1. From the Main Menu, select Options. The Options screen will appear.
  2. Select Show More Options. The Options overlay will appear.
  3. Select Advanced
  4. Select Unit Size.
  5. Select Larger - Reduces Performance in 3D Battles.
  6. Select Close. The Unit Size has now been increased.