24 games ranked by how much the tags Steam players vote on them overlap with Ravenmark: Scourge of Estellion'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: Turn-Based Tactics, Turn-Based, Strategy, Tactical, Turn-Based Strategy, RPG.

1·MASSIVE CHALICE
98% match · Turn-Based Tactics, Turn-Based
73% of 1,912 reviews positive

2·Jagged Alliance Flashback
98% match · Turn-Based, Tactical
47% of 777 reviews positive

3·Blackguards
97% match · Turn-Based, Tactical
62% of 3,922 reviews positive

4·Antisquad
97% match · Turn-Based, Strategy
52% of 298 reviews positive

5·Disciples III - Renaissance Steam Special Edition
96% match · Turn-Based, Strategy
51% of 545 reviews positive

6·Halfway
96% match · Turn-Based, Strategy
72% of 1,018 reviews positive

7·Gears Tactics
96% match · Turn-Based Tactics, Strategy
75% of 7,786 reviews positive

8·Clatter
96% match · Strategy, Turn-Based Tactics
83% of 1,270 reviews positive

9·Ascension to the Throne
96% match · Turn-Based, Strategy
90% of 689 reviews positive

10·Weaves of Fate
96% match · Turn-Based Tactics, Strategy
69% of 80 reviews positive

11·The Dungeon Of Naheulbeuk: The Amulet Of Chaos
95% match · Turn-Based Tactics, Turn-Based
87% of 8,103 reviews positive

12·Might & Magic: Heroes VI
95% match · Turn-Based, Turn-Based Strategy
48% of 9,286 reviews positive

13·The Banner Saga 3
95% match · Turn-Based Tactics, Strategy
78% of 3,111 reviews positive

14·Disciples III - Resurrection
95% match · Strategy, Turn-Based
30% of 341 reviews positive

15·Breach & Clear
95% match · Tactical, Strategy
83% of 2,431 reviews positive

16·Fae Tactics
94% match · Turn-Based Tactics, Strategy
85% of 1,755 reviews positive

17·Druidstone: The Secret of the Menhir Forest
94% match · Turn-Based, Turn-Based Tactics
83% of 1,398 reviews positive

18·Skulls of the Shogun
94% match · Turn-Based Strategy, Turn-Based
90% of 870 reviews positive

19·Jagged Alliance 1: Gold Edition
94% match · Turn-Based, Strategy
78% of 514 reviews positive

20·Heroes of Might & Magic V
93% match · Turn-Based Strategy, Strategy
88% of 4,318 reviews positive

21·Elven Legacy
93% match · Strategy, RPG
75% of 195 reviews positive

22·Etherlords
92% match · Turn-Based, Turn-Based Strategy
43% of 237 reviews positive

23·Etherlords II
92% match · Turn-Based, Turn-Based Strategy
83% of 500 reviews positive

24·XCOM®: Chimera Squad
91% match · Turn-Based Tactics, Strategy
71% of 23,487 reviews positive
The closest matches to Ravenmark: Scourge of Estellion on Steam are MASSIVE CHALICE, Jagged Alliance Flashback, Blackguards, Antisquad, Disciples III - Renaissance Steam Special Edition. They rank highest because their Steam community tags overlap most with Ravenmark: Scourge of Estellion's, and shared tags include Turn-Based Tactics, Turn-Based, Strategy.
Every game is described by the tags Steam players vote on it. Rare, specific tags such as Turn-Based Tactics, Turn-Based, Strategy count far more than catch-all ones like "Indie" or "Singleplayer", and each game is scored on how closely its whole tag profile matches Ravenmark: Scourge of Estellion's. Popularity never affects the ranking.