Games like Blockappend
Games like Blockappend include Sizeable, Hook, LYNE, Zup! S, and klocki. We matched them by the tags players give Blockappend on Steam (Puzzle, 3D, Isometric, Casual, and Minimalist): closest matches first, and among equally close ones the better-known games.

Sizeable
Shared: Puzzle · Casual · 3D

Hook
Shared: Puzzle · Casual · Minimalist

LYNE
Shared: Puzzle · Minimalist · Logic

Zup! S
Shared: Puzzle · Casual · Minimalist

klocki
Shared: Puzzle · Casual · Minimalist

Hexcells
Shared: Puzzle · Casual · Logic

Hexcells Infinite
Shared: Puzzle · Casual · Logic

Dorfromantik
Shared: Puzzle · Casual · Relaxing

Tiny Lands
Shared: Puzzle · Casual · Isometric

ISLANDERS
Shared: Puzzle · Minimalist · Relaxing

Baba Is You
Shared: Puzzle · Logic · Indie

Hexcells Plus
Shared: Puzzle · Casual · Logic

Unpacking
Shared: Puzzle · Casual · Relaxing

Is This Seat Taken?
Shared: Puzzle · Casual · Logic

COCOON
Shared: Puzzle · 3D · Atmospheric

Zenge
Shared: Puzzle · Casual · Minimalist

Librarian: Tidy Up the Arcane Library!
Shared: Puzzle · Casual · 3D

Mini Motorways
Shared: Puzzle · Casual · Minimalist

Moncage
Shared: Puzzle · Casual · Singleplayer

LEGO® Bricktales
Shared: Puzzle · Controller · Isometric

Delete
Shared: Puzzle · Casual · Minimalist

Mini Metro
Shared: Puzzle · Minimalist · Casual

Glass Masquerade
Shared: Puzzle · Casual · Atmospheric

Patrick's Parabox
Shared: Puzzle · Minimalist · Logic