I Have No Mouth, and I Must Scream vs Portal 2

A full spec-by-spec comparison of I Have No Mouth, and I Must Scream vs Portal 2 — engine, performance, dimensions, features and price, with the differences highlighted to help you decide.

Specification I Have No Mouth, and I Must Scream Nightdive Studios, DotEmu, Night Dive Studios Portal 2 Portal 2 Electronic Arts, Valve
Overview
Release Date October 31, 1995 April 18, 2011
Availability Released Released
Developer DotEmu, The Dreamers Guild, Cyberdreams Valve Software
Publisher Nightdive Studios, DotEmu, Night Dive Studios Electronic Arts, Valve
Official Site http://www.nightdivestudios.com/games/i-have-no-mouth-and-i-must-scream/?utm_source=steampowered.com&utm_medium=product&utm_campaign=website-ihavenomouth http://www.thinkwithportals.com/
Age Rating Everyone 10+
Gameplay
Genre Adventure, Puzzle Shooter, Puzzle
Game Modes Single-player Single-player, Multiplayer, Co-op, Online Co-op, Local Co-op
Perspective 2D First-person
Average Playtime 3 hours 11 hours
Platforms & Pricing
Platforms PC, iOS, Android, Apple Macintosh, Linux PC, PlayStation, Xbox, Apple Macintosh, Linux
Available On Steam, GOG, Google Play, App Store Xbox Store, Steam, PlayStation Store, Xbox 360 Store
PC Requirements
Minimum Requirements OS: Windows XP / Vista / 7 Processor: IBM PC Compatible computer with a 233Mhz 486 processor Memory: 8 MB RAM Graphics: A VESA compatible Super VGA card DirectX: Version 9.0c Storage: 2 GB available space
Recommended Requirements OS: Windows 7 Processor: IBM PC Compatible computer with a 486 DX2/ 66Mhz (or faster) processor Memory: 8 MB RAM Graphics: A VESA compatible Super VGA card DirectX: Version 9.0c Storage: 2 GB available space Sound Card: Sound Blaster AWE32 sound card
Critic & Community Scores
Community Rating 3.4 / 5 (134 ratings) 4.6 / 5 (6,108 ratings)
Metacritic 95 / 100