24 games ranked by how much the tags Steam players vote on them overlap with Kaiju Wars's. A rare tag counts for far more than one that sits on half the store, and popularity never moves a game up.
What they share most: Mechs, Turn-Based Strategy, Turn-Based Tactics, Turn-Based, Tactical, Tactical RPG.

1·Into the Breach
87% match · Mechs, Turn-Based Strategy
94% of 22,457 reviews positive

2·BATTLETECH
86% match · Mechs, Turn-Based Tactics
84% of 33,291 reviews positive

3·Jagged Alliance 3
84% match · Turn-Based Tactics, Tactical
88% of 15,109 reviews positive

4·Templar Battleforce
83% match · Mechs, Tactical RPG
93% of 985 reviews positive

5·Super Robot Wars 30
83% match · Mechs, Tactical RPG
86% of 6,517 reviews positive · 237 playing

6·Showgunners
83% match · Turn-Based Tactics, Tactical
93% of 1,979 reviews positive

7·Clatter
82% match · Turn-Based Tactics, Turn-Based
83% of 1,270 reviews positive

8·The Banner Saga 3
81% match · Turn-Based Tactics, Tactical RPG
78% of 3,111 reviews positive

9·Fell Seal: Arbiter's Mark
81% match · Turn-Based Tactics, Tactical RPG
88% of 6,368 reviews positive

10·Warbanners
81% match · Tactical RPG, Turn-Based Tactics
71% of 615 reviews positive

11·Phantom Brigade
81% match · Mechs, Tactical RPG
81% of 4,614 reviews positive

12·Fallen: A2P Protocol
81% match · Turn-Based, Turn-Based Tactics
38% of 226 reviews positive

13·Hard West 2
81% match · Turn-Based Tactics, Tactical RPG
82% of 3,236 reviews positive

14·Bionic Dues
81% match · Mechs, Turn-Based
75% of 996 reviews positive

15·Cyber Knights: Flashpoint
80% match · Tactical RPG, Tactical
94% of 3,248 reviews positive

16·Chains of Freedom
80% match · Turn-Based Tactics, Tactical
81% of 562 reviews positive

17·Druidstone: The Secret of the Menhir Forest
80% match · Turn-Based, Turn-Based Tactics
83% of 1,398 reviews positive

18·Silent Storm Gold Edition
80% match · Turn-Based Tactics, Turn-Based
88% of 1,073 reviews positive

19·SD GUNDAM G GENERATION CROSS RAYS
80% match · Mechs, Tactical RPG
82% of 8,199 reviews positive

20·Jagged Alliance: Rage!
80% match · Tactical RPG, Turn-Based Tactics
50% of 507 reviews positive

21·The Protagonist: EX-1
79% match · Tactical RPG, Turn-Based Tactics
64% of 36 reviews positive

22·Interregnum: False Prophet
79% match · Tactical RPG, Turn-Based Tactics
59% of 58 reviews positive

23·The Last Spell
79% match · Tactical RPG, Turn-Based Tactics
91% of 13,771 reviews positive

24·Mech Armada
79% match · Mechs, Turn-Based Tactics
81% of 700 reviews positive
The closest matches to Kaiju Wars on Steam are Into the Breach, BATTLETECH, Jagged Alliance 3, Templar Battleforce, Super Robot Wars 30. They rank highest because their Steam community tags overlap most with Kaiju Wars's, and shared tags include Mechs, Turn-Based Strategy, Turn-Based Tactics.
Every game is described by the tags Steam players vote on it. Rare, specific tags such as Mechs, Turn-Based Strategy, Turn-Based Tactics count far more than catch-all ones like "Indie" or "Singleplayer", and each game is scored on how closely its whole tag profile matches Kaiju Wars's. Popularity never affects the ranking.