Games like The Pair Annihilation
Games like The Pair Annihilation include Into the Breach, The Last Spell, FTL: Faster Than Light, Inkbound, and Fell Seal: Arbiter's Mark. We matched them by the tags players give The Pair Annihilation on Steam (Space, Roguelike, Turn-Based Strategy, RPG, and Grid-Based Movement): closest matches first, and among equally close ones the better-known games.

Into the Breach
Shared: Turn-Based Strategy · Roguelike · Indie

The Last Spell
Shared: Turn-Based Strategy · RPG · Strategy

FTL: Faster Than Light
Shared: Space · Roguelike · Indie

Inkbound
Shared: Turn-Based Strategy · Turn-Based Tactics · Roguelike

Fell Seal: Arbiter's Mark
Shared: RPG · Indie · Turn-Based Strategy

Jagged Alliance 3
Shared: Turn-Based Strategy · Turn-Based Tactics · RPG

Lost Eidolons: Veil of the Witch
Shared: Turn-Based Strategy · Roguelike · Turn-Based Tactics

Mewgenics
Shared: Turn-Based Strategy · Turn-Based Tactics · RPG

Warhammer 40,000: Chaos Gate - Daemonhunters
Shared: Turn-Based Strategy · Turn-Based Tactics · Strategy RPG

Quasimorph
Shared: RPG · Turn-Based Strategy · Roguelike

Shogun Showdown
Shared: Roguelike · Turn-Based Strategy · Strategy RPG

STAR WARS Zero Company™
Shared: Turn-Based Strategy · Turn-Based Tactics · Strategy

Legends of Kingdom Rush
Shared: Turn-Based Strategy · Turn-Based Tactics · Roguelike

Prime of Flames
Shared: Roguelike · RPG · Strategy

Cobalt Core
Shared: Roguelike · Turn-Based Strategy · Strategy

XCOM 2
Shared: RPG · Strategy · Turn-Based Tactics

Banner of the Maid
Shared: Turn-Based Strategy · RPG · Strategy

Warhammer 40,000: Rogue Trader
Shared: RPG · Turn-Based Strategy · Space

Battle Brothers
Shared: Turn-Based Strategy · RPG · Strategy

For The King II
Shared: RPG · Turn-Based Strategy · Roguelike

For The King
Shared: RPG · Roguelike · Strategy

Loop Hero
Shared: Roguelike · Indie · Strategy RPG

Stoneshard
Shared: Roguelike · RPG · Strategy

Monster Train
Shared: Roguelike · Turn-Based Strategy · Turn-Based Tactics